Excel in your academics by accessing McGraw Hill Math Grade 7 Answer Key PDF Lesson 24.2 Line Segments and Rays existing for free of cost.
McGraw-Hill Math Grade 7 Answer Key Lesson 24.2 Line Segments and Rays
Exercises
IDENTIFY
Question 1.
How many line segments are there if you connect all the vertexes in this figure? Some, but not all, have been connected for you.
Answer:
30 lines segments,
Explanation:
there are 5 line segments from point A to B,C,D,E AND F.
6 points and 5 line segments,
6 x 5 = 30
Total 30 line segments can be constructed to connect all the vertexes in the above figure.
Question 2.
Let A stand for the town Augusta, and B stand for the town Bar Harbor. Using these two letters, what would be the ray if you were traveling from Bar Harbor through Augusta?
Answer:
\(\overline{BA}\),
Explanation:
Point A stand for the town Augusta, and B stand for the town Bar Harbor.
Using these two letters a ray from Bar Harbor through Augusta can be drawn.
Question 3.
Name all the possible line segments in this figure.
Answer:
\(\overline{BO}\), \(\overline{OD}\), \(\overline{BD}\), \(\overline{AB}\),
\(\overline{AO}\), \(\overline{OC}\), \(\overline{CB}\), \(\overline{BC}\),
\(\overline{OB}\), \(\overline{DO}\), \(\overline{DB}\), \(\overline{BA}\), \(\overline{OA}\), \(\overline{CO}\).
Explanation:
A line segment is part of a line that has two endpoints and is finite in length.
A ray is a line segment that extends indefinitely in one direction.
The following are all possible line segments, which can be drawn from O to B and O to D and all…
\(\overline{BO}\), \(\overline{OD}\), \(\overline{BD}\), \(\overline{AB}\),
\(\overline{AO}\), \(\overline{OC}\), \(\overline{CB}\), \(\overline{BC}\),
\(\overline{OB}\), \(\overline{DO}\), \(\overline{DB}\), \(\overline{BA}\), \(\overline{OA}\), \(\overline{CO}\).
Question 4.
At the right is a drawing of an airport runway. Name all the possible rays that could be used to describe the different ways a plane could take off. For points, use the numbers at the end of the runways: 15, 24, 8 and 33. An example of one is ray 15 – 33. Name the other three.
Answer:
Ray 33-15, Ray 24-8, Ray 8-24, Ray 15-33
Explanation:
A Ray from DC and CD Ray 33-15, Ray 15-33
A Ray from AB and BA Ray 24-8, Ray 8-24