# Texas Go Math Kindergarten Lesson 18.5 Answer Key Components of Three-Dimensional Objects

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## Texas Go Math Kindergarten Lesson 18.5 Answer Key Components of Three-Dimensional Objects

Essential Question
How can you find two-dimensional shapes on a three-dimensional shape?

Unlock the Problem  Explanation:
I traced the flat surfaces of the given three-dimensional shapes
I matched the shapes with their two-dimensional shapes.

Directions
Trace the dashed part of each three-dimensional shape. Draw lines to match the flat surfaces of the three-dimensional shapes to the two-dimensional shapes.

Try Another Problem

Question 1.  Explanation:
A cylinder has a flat surface shaped like a circle
So, i colored the cylinder.

Question 2.  Explanation:
A cone does not have a flat shaped like a square
So, i colored a cone.

Question 3.  Explanation:
A cube has a flat surface shaped like a square
So, i colored a cube.

Directions
1. Which three-dimensional shape has a flat surface shaped like a circle? Color the shape. 2. Which three-dimensional shape does not have a flat surface shaped like a square? Color the shape. 3. Which three-dimensional shape has a flat surface shaped like square? Color the shape.

Share and Show

Question 4.  Explanation:
I marked X under the square as the flat surface of the given object is a square.

Question 5.  Explanation:
I marked X under the circle as the flat surface of the given object is a circle.

Question 6.  Explanation:
I marked X under the circle as the flat surface of the given object is a circle.

Question 7.  Explanation:
I marked X under the square as the flat surface of the given object is a square.

Question 8.  Explanation:
I marked X under the square as the flat surface of the given object is a square.

Directions
4-8. Look at the object in the chart. Mark an X under the circle if the flat surface of the object is a circle. Mark on X under the square if the flat surface of the object is a square.

Home Activity

• Have your child identify a household object that is shaped like a three-dimensional shape. Have your child tell you what shape the flat surface of the object is.

Question 9.  Explanation:
Saya traced a block to make a square
Saya used cube as it has a flat surface of square
So, I checked a cube.

Question 10.  Explanation:
I checked a square as it is not a flat surface of a cone.

Question 11.  Explanation:
I checked square as it is flat surface of a cube.

Directions
Choose the correct answer. 9. Saya traced a block to make a square. Which block did she use? 10. Which shape is not the flat surface on a cone? 11. Which shape is the flat surface on a cube?

### Texas Go Math Kindergarten Lesson 18.5 Homework and Practice

Question 1.  Explanation:
I marked X under the circle as the flat surface of the given object is a circle.

Question 2.  Explanation:
I marked X under the square as the flat surface of the given object is a square.

Question 3.  Explanation:
I marked X under the circle as the flat surface of the given object is a circle.

Question 4.  Explanation:
I marked X under the square as the flat surface of the given object is a square.

Question 5.  Explanation:
I marked X under the square as the flat surface of the given object is a square.

Directions
1-5. Look at the object in the chart. Mark on X under the circle if the flat surface of the object is a circle. Mark on X under the square if the flat surface of the object is a square.

Texas Test Prep

Lesson Check

Question 6.  Explanation:
I checked a cylinder as Diana traced a cylinder to make a circle.

Question 7.  Explanation:
I checked the circle as it is the flat surface of a cone.

Question 8.  