McGraw Hill Math

McGraw Hill Math Grade 4 Chapter 12 Lesson 6 Answer Key Triangles

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Practice the questions of McGraw Hill Math Grade 4 Answer Key PDF Chapter 12 Lesson 6 Triangles to secure good marks & knowledge in the exams.

McGraw-Hill Math Grade 4 Answer Key Chapter 12 Lesson 6 Triangles

Solve

Classify each triangle as equilateral, scalene, or isosceles. Then classify each triangle as acute or obtuse.

Question 1.
McGraw Hill Math Grade 4 Chapter 12 Lesson 6 Answer Key Triangles 1
Answer:
Equilateral
Acute

Explanation:
The above given triangle is an equilateral and acute.

Question 2.
McGraw Hill Math Grade 4 Chapter 12 Lesson 6 Answer Key Triangles 2
Answer:
Isosceles
Obtuse

Explanation:
The above given triangle is an isosceles and obtuse.

Question 3.
McGraw Hill Math Grade 4 Chapter 12 Lesson 6 Answer Key Triangles 3
Answer:
Acute
Isosceles

Explanation:
The above given triangle is an acute and isosceles.

Question 4.
McGraw Hill Math Grade 4 Chapter 12 Lesson 6 Answer Key Triangles 4
Answer:
Scalene
Right

Explanation:
The above given triangle is an scalene and right.

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McGraw Hill Math Grade 4 Chapter 12 Lesson 7 Answer Key Right Triangles

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Practice the questions of McGraw Hill Math Grade 4 Answer Key PDF Chapter 12 Lesson 7 Right Triangles to secure good marks & knowledge in the exams.

McGraw-Hill Math Grade 4 Answer Key Chapter 12 Lesson 7 Right Triangles

Solve

Classify each triangle as right, obtuse, or acute. Then classify each as equilateral, scalene, or isosceles.

Question 1.
McGraw Hill Math Grade 4 Chapter 12 Lesson 7 Answer Key Right Triangles 1
Answer:
right
isosceles

Explanation:
The given triangle is an right and isosceles.

Question 2.
McGraw Hill Math Grade 4 Chapter 12 Lesson 7 Answer Key Right Triangles 2
Answer:
Acute
Isosceles

Explanation:
The given triangle is an acute and isosceles.

Question 3.
McGraw Hill Math Grade 4 Chapter 12 Lesson 7 Answer Key Right Triangles 3
Answer:
Acute
Equilateral

Explanation:
The given triangle is an acute and equilateral.

Question 4.
McGraw Hill Math Grade 4 Chapter 12 Lesson 7 Answer Key Right Triangles 4
Answer:
Right
Isosceles

Explanation:
The given triangle is a right and isosceles.

Question 5.
McGraw Hill Math Grade 4 Chapter 12 Lesson 7 Answer Key Right Triangles 5
Answer:
Right
Scalene

Explanation:
The given triangle is a right and scalene.

Question 6.
McGraw Hill Math Grade 4 Chapter 12 Lesson 7 Answer Key Right Triangles 6
Answer:
Acute
Equilateral

Explanation:
The given triangle is an acute and equilateral.

Question 7.
Can a triangle have more than one right angle? If so, draw an example.
Answer:
No, a triangle can never have two right angles
Reason: Sum of the three angles of a triangle must be is 180.

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McGraw Hill Math Grade 4 Chapter 12 Lesson 8 Answer Key Line Symmetry

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Practice the questions of McGraw Hill Math Grade 4 Answer Key PDF Chapter 12 Lesson 8 Line Symmetry to secure good marks & knowledge in the exams.

McGraw-Hill Math Grade 4 Answer Key Chapter 12 Lesson 8 Line Symmetry

Solve

Look at each shape. Tell how many lines of symmetry each figure has.

Question 1.
McGraw Hill Math Grade 4 Chapter 12 Lesson 8 Answer Key Line Symmetry 1
Answer:
2

Explanation:
This figure have 2 lines of symmetry.

Question 2.
McGraw Hill Math Grade 4 Chapter 12 Lesson 8 Answer Key Line Symmetry 2
Answer:
0

Explanation:
The given figure cannot be folded in half to make equal parts
So, the figure has no lines of symmetry.

Question 3.
McGraw Hill Math Grade 4 Chapter 12 Lesson 8 Answer Key Line Symmetry 3
Answer:
2

Explanation:
This figure have 2 lines of symmetry.

Draw lines of symmetry on each shape if you can.

Question 4.
McGraw Hill Math Grade 4 Chapter 12 Lesson 8 Answer Key Line Symmetry 4
Answer:
McGraw Hill Math Grade 4 Chapter 12 Lesson 8 Answer Key img 1

Explanation:
I drew 1 line of symmetry on given the shape.

Question 5.
McGraw Hill Math Grade 4 Chapter 12 Lesson 8 Answer Key Line Symmetry 5
Answer:
McGraw Hill Math Grade 4 Chapter 12 Lesson 8 Answer Key img 2

Explanation:
I drew 1 line of symmetry on given the shape.

Question 6.
McGraw Hill Math Grade 4 Chapter 12 Lesson 8 Answer Key Line Symmetry 6
Answer:
No

Explanation:
The given figure cannot be folded in half to make equal parts
So, the figure has no lines of symmetry.

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McGraw Hill Math Grade 4 Chapter 12 Lesson 9 Answer Key Problem Solving: Finding Patterns

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Practice the questions of McGraw Hill Math Grade 4 Answer Key PDF Chapter 12 Lesson 9 Problem Solving: Finding Patterns to secure good marks & knowledge in the exams.

McGraw-Hill Math Grade 4 Answer Key Chapter 12 Lesson 9 Problem Solving: Finding Patterns

Solve

Question 1.
Jenny draws this pattern.
McGraw Hill Math Grade 4 Chapter 12 Lesson 9 Answer Key Problem Solving Finding Patterns 1
What shapes will complete the pattern?
Answer:
McGraw Hill Math Grade 4 Chapter 12 Lesson 9 Answer Key img 1

Explanation:
The shapes in the pattern are square, circle and triangle
So, the missing shapes are square and a circle.

Question 2.
Nasif starts with a number. He adds 920, multiplies by 3, subtracts 1,201, and then divides by 7. The result is 239. What number did Nasif start with?
Answer:
38

Explanation:
Reverse all operations to find the number
Nasif starts with a number. He adds 920, multiplies by 3, subtracts 1,201, and then divides by 7
The result is 239
Multiply 239 by 7, 239 x 7 = 1673
Add 1201 to 1673, 1673 + 1201 = 2874
Divide 2874 with 3, 2874/3 = 958
Subtract 920 from 958, 958 – 920 = 38
So, Nasif started with the number 38.

Question 3.
A college teacher is reading reports from her students. The first report is 3 pages long. The second report is 6 pages long. The third report is 9 pages long. The fourth report is 12 pages long. If the pattern continues, how many pages will be in the eighth report?
Answer:
24 pages

Explanation:
A college teacher is reading reports from her students
The first report is 3 pages long
The second report is 6 pages long
The third report is 9 pages long
The fourth report is 12 pages long
The pattern is 3, 6, 9, 12
Its is multiple of 3
So, the pattern will be 3, 6, 9, 12, 15, 18, 21, 24
The eighth report is 24 pages long.

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McGraw Hill Math Grade 4 Chapter 12 Test Answer Key

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Practice the questions of McGraw Hill Math Grade 4 Answer Key PDF Chapter 12 Test to secure good marks & knowledge in the exams.

McGraw-Hill Math Grade 4 Chapter 12 Test Answer Key

Question 1.
What is a ray?
Answer:
A ray is a part of a line that has 1 endpoint
It goes on without end in the other direction.

Question 2.
What is an angle?
Answer:
An angle is a figure formed by two rays that share the same end point
The rays are the sides of angle
The end pint is the vertex of the angle.

Question 3.
Which pair of lines is parallel? Place a checkmark below the correct answer.
McGraw Hill Math Grade 4 Chapter 12 Test Answer Key 1
Answer:
There are no parallel lines in the given pairs of lines.

Question 4.
Which pair of lines is parallel? Place a checkmark below the correct answer.
McGraw Hill Math Grade 4 Chapter 12 Test Answer Key 2
Answer:
McGraw Hill Math Grade 4 Chapter 12 Test Answer Key img 1

Explanation:
The first pair of lines are parallel lines
So, i placed a check mark under the first pair of lines.

Question 5.
McGraw Hill Math Grade 4 Chapter 12 Test Answer Key 3
How many parallel lines does this shape have? ________
Does this shape have perpendicular lines? ________
Are all four sides the same length? ________
Name the shape. ________
Answer:
The shape have 2 pars of parallel lines
Yes, the shape of perpendicular lines
No, opposite sides are same in length
The name of the shape is parallelogram.

Question 6.
McGraw Hill Math Grade 4 Chapter 12 Test Answer Key 4
How many parallel lines does this shape have? ________
Does this shape have perpendicular lines? ________
Are all four sides the same length? ________
Name the shape. ________
Answer:
The shape have 2 pars of parallel lines
Yes, the shape of perpendicular lines
All the sides are same in length
The name of the shape is rhombus.

Classify each triangle as equilateral, scalene, or isosceles. Then classify each as acute, obtuse, or right.

Question 7.
McGraw Hill Math Grade 4 Chapter 12 Test Answer Key 5
Answer:
Right
Scalene

Explanation:
The triangle is right and scalene.

Question 8.
McGraw Hill Math Grade 4 Chapter 12 Test Answer Key 6
Answer:
Acute
Equilateral

Explanation:
The triangle is an acute and equilateral.

Question 9.
McGraw Hill Math Grade 4 Chapter 12 Test Answer Key 7
Answer:
Acute
Scalene

Explanation:
The triangle is an acute and scalene.

Question 10.
Draw a line segment. Label it \(\overline{A B}\).
Answer:
McGraw Hill Math Grade 4 Chapter 12 Test Answer Key img 2

Explanation:
I drew a line segment and labeled it \(\overline{A B}\).

Question 11.
Draw an obtuse angle. Label it ∠RPQ.
Answer:
McGraw Hill Math Grade 4 Chapter 12 Test Answer Key img 3

Explanation:
I drew an obtuse angle triangle and labeled it ∠RPQ.

Question 12.
Draw a pair of perpendicular lines. Label them \(\overleftrightarrow{M N}\) and \(\overleftrightarrow{O P}\).
Answer:
McGraw Hill Math Grade 4 Chapter 12 Test Answer Key img 4

Explanation:
I drew a pair of perpendicular lines and labeled the \(\overleftrightarrow{M N}\) and \(\overleftrightarrow{O P}\).

Draw lines of symmetry on each shape if you can.

Question 13.
McGraw Hill Math Grade 4 Chapter 12 Test Answer Key 8
Answer:
McGraw Hill Math Grade 4 Chapter 12 Test Answer Key img 5

Explanation:
I drew 2 lines of symmetry in the given shape.

Question 14.
McGraw Hill Math Grade 4 Chapter 12 Test Answer Key 9
Answer:
The above given figure cannot be folded into two equal parts
So, it do not have any lines of symmetry.

Question 15.
Jenny draws this pattern.
McGraw Hill Math Grade 4 Chapter 12 Test Answer Key 10
What shapes will complete the pattern?
Answer:
McGraw Hill Math Grade 4 Chapter 12 Test Answer Key img 6

Explanation:
The pattern is made up circles and triangle
Triangles come after circles and circles come after triangles
So, the missing shapes in the pattern are circles.

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McGraw Hill Math Grade 4 Chapter 13 Lesson 1 Answer Key Angles and Circles

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Practice the questions of McGraw Hill Math Grade 4 Answer Key PDF Chapter 13 Lesson 1 Angles and Circles to secure good marks & knowledge in the exams.

McGraw-Hill Math Grade 4 Answer Key Chapter 13 Lesson 1 Angles and Circles

Solve

Write each missing number.

Question 1.
1 right angle = ___________
Answer:
90

Explanation:
1 right angle measures 90 degrees.

Question 2.
2 right angle = ___________
Answer:
180

Explanation:
1 right angle = 90
2 right angles = 2 x 90 = 180
So, 2 right angles = 180 degrees.

Question 3.
3 right angle = ___________
Answer:
270

Explanation:
1 right angle = 90
3 right angles = 3 x 90 = 270
So, 3 right angles = 270 degrees.

Question 4.
4 right angle = ___________
Answer:
1 right angle = 90
4 right angles = 4 x 90 = 360
So, 4 right angles = 360 degrees.

Question 5.
A 90-degree angle is a right angle. What would a 45-degree angle look like? Draw it.
Answer:
McGraw Hill Math Grade 4 Chapter 13 Lesson 1 Answer Key img 1

Explanation:
A 45-degree angle is half of a 90-degree angle
I drew to show the 45-degree angle.

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McGraw Hill Math Grade 4 Chapter 13 Lesson 2 Answer Key Measuring Angles

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Practice the questions of McGraw Hill Math Grade 4 Answer Key PDF Chapter 13 Lesson 2 Measuring Angles to secure good marks & knowledge in the exams.

McGraw-Hill Math Grade 4 Answer Key Chapter 13 Lesson 2 Measuring Angles

Measure

Use a protractor to measure each angle.

Question 1.
McGraw Hill Math Grade 4 Chapter 13 Lesson 2 Answer Key Measuring Angles 1
Answer:
90

Question 2.
McGraw Hill Math Grade 4 Chapter 13 Lesson 2 Answer Key Measuring Angles 2
Answer:
McGraw Hill Math Grade 4 Chapter 13 Lesson 1 Answer Key img 2

Explanation:
The measure of the angle is 120-degree.

Question 3.
McGraw Hill Math Grade 4 Chapter 13 Lesson 2 Answer Key Measuring Angles 3
Answer:
McGraw Hill Math Grade 4 Chapter 13 Lesson 1 Answer Key img 3

Explanation:
The measure of the angle is 20-degrees.

Question 4.
McGraw Hill Math Grade 4 Chapter 13 Lesson 2 Answer Key Measuring Angles 4
Answer:
McGraw Hill Math Grade 4 Chapter 13 Lesson 1 Answer Key img 4

Explanation:
The measure of the angle is 155-degrees.

Question 5.
What is the angle measure of a straight line?
Answer:
180-degree angle

Explanation:
A straight line measures two right angles that is 180-degree angle.

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McGraw Hill Math Grade 4 Chapter 13 Lesson 3 Answer Key Drawing Angles

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Practice the questions of McGraw Hill Math Grade 4 Answer Key PDF Chapter 13 Lesson 3 Drawing Angles to secure good marks & knowledge in the exams.

McGraw-Hill Math Grade 4 Answer Key Chapter 13 Lesson 3 Drawing Angles

Draw

Draw an angle with each measure. Use a protractor.

Question 1.
130°
Answer:
McGraw Hill Math Grade 4 Chapter 13 Lesson 3 Answer Key Drawing Angles 1

Explanation:
The measure of the angle is 130-degrees.

Question 2.
160°
Answer:
McGraw Hill Math Grade 4 Chapter 13 Lesson 3 Answer Key img 1

Explanation:
The measure of the angle is 160-degrees.

Question 3.
65°
Answer:
McGraw Hill Math Grade 4 Chapter 13 Lesson 3 Answer Key img 2

Explanation:
The measure of the angle is 65-degrees.

Question 4.
20°
Answer:
McGraw Hill Math Grade 4 Chapter 13 Lesson 3 Answer Key img 3

Explanation:
The measure of the angle is 20-degrees.

Question 5.
Look at each angle you drew. Classify each as acute, obtuse, or right.
#1 ___________________
#2 ___________________
#3 ___________________
#4 ___________________
Answer:
#1 Obtuse
#2 Obtuse
#3 Acute
#4 Acute

Explanation:
I wrote the angles i drew in order.

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McGraw Hill Math Grade 4 Chapter 13 Lesson 4 Answer Key Adding Angle Measures

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Practice the questions of McGraw Hill Math Grade 4 Answer Key PDF Chapter 13 Lesson 4 Adding Angle Measures to secure good marks & knowledge in the exams.

McGraw-Hill Math Grade 4 Answer Key Chapter 13 Lesson 4 Adding Angle Measures

Solve

Write an equation to solve each problem.

Question 1.
∠ABC measures 68°.
∠CBDmeasures 45°.
What is the measure of ∠ABD?
McGraw Hill Math Grade 4 Chapter 13 Lesson 4 Answer Key Adding Angle Measures 1
Answer:
68°+ 45° = 113°

Question 2.
∠WAYmeasures 107°.
∠YXZmeasures 57°.
What is the measure of ∠WXZ?
McGraw Hill Math Grade 4 Chapter 13 Lesson 4 Answer Key Adding Angle Measures 2
Answer:
164°

Explanation:
∠WAYmeasures 107°
∠YXZmeasures 57°
107 + 57 = x
Add 107 and 57
107 + 57 = 164
So, ∠WXZmeasures 164°.

Question 3.
A padlock is turned 29°. Then it is turned another 52°. How many degrees was the padlock turned in all?
McGraw Hill Math Grade 4 Chapter 13 Lesson 4 Answer Key Adding Angle Measures 3
Answer:
81°

Explanation:
A padlock is turned 29°
Then it is turned another 52°
29 + 52 = x
Add 29 and 52
29 + 52 = 81
So, the padlock is turned 81° in all.

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McGraw Hill Math Grade 4 Chapter 12 Lesson 4 Answer Key Parallel and Perpendicular Lines

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Practice the questions of McGraw Hill Math Grade 4 Answer Key PDF Chapter 12 Lesson 4 Parallel and Perpendicular Lines to secure good marks & knowledge in the exams.

McGraw-Hill Math Grade 4 Answer Key Chapter 12 Lesson 4 Parallel and Perpendicular Lines

Solve

Question 1.
Which pair of lines is parallel? Place a checkmark under the correct answer.
McGraw Hill Math Grade 4 Chapter 12 Lesson 4 Answer Key Parallel and Perpendicular Lines 1

Explanation:
The second pair of lines are parallel lines
So, i placed a check mark under the second pair of lines.

Question 2.
Which shape shows perpendicular lines?
McGraw Hill Math Grade 4 Chapter 12 Lesson 4 Answer Key Parallel and Perpendicular Lines 2
Answer:
McGraw Hill Math Grade 4 Chapter 12 Lesson 4 Answer Key img 1

Explanation:
The third shape shows the perpendicular lines
So, i placed a check mark under the third shape.

Question 3.
Which shape shows parallel lines?
McGraw Hill Math Grade 4 Chapter 12 Lesson 4 Answer Key Parallel and Perpendicular Lines 3
Answer:
McGraw Hill Math Grade 4 Chapter 12 Lesson 4 Answer Key img 2

Explanation:
The first shape shows the parallel lines
So, i placed a check mark under the first shape.

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