Extra Set

Grade 7 · Unit 6 · L27 · Version A · 71EA

Plane sections of three-dimensional figures

Name ________________

Date ________________

Period ________________

1.
A plane slices a rectangular prism parallel to the base. What shape is the cross section?
Answer. rectangle
rectangle
2.
A plane slices a right cylinder parallel to the base. What shape is the cross section?
Answer. circle
circle
3.
A plane slices a rectangular prism parallel to the base. What shape is the cross section?
Answer. rectangle
rectangle
4.
A plane slices a cube through three edges that meet at a vertex. What shape is the cross section?
Answer. triangle
triangle
5.
A plane slices a cube through three edges that meet at a vertex. What shape is the cross section? Write a complete answer — Malik will compare with a partner.
Answer. triangle
triangle
6.
A plane slices a right cylinder perpendicular to the base through the axis. What shape is the cross section? Write a complete answer — Ava will compare with a partner.
Answer. rectangle
rectangle
7.
A plane slices a rectangular prism parallel to the base. What shape is the cross section? Write a complete answer — Priya will compare with a partner.
Answer. rectangle
rectangle
8.
A plane slices a cube through three edges that meet at a vertex. What shape is the cross section? Write a complete answer — Priya will compare with a partner.
Answer. triangle
triangle
9.
A plane slices a right cylinder perpendicular to the base through the axis. What shape is the cross section? Write a complete answer — Grace will compare with a partner.
Answer. rectangle
rectangle
10.
A plane slices a right cylinder parallel to the base. What shape is the cross section? Write a complete answer — Priya will compare with a partner.
Answer. circle
circle
11.
Think
Malik tried this problem:
A plane slices a right cylinder perpendicular to the base through the axis. What shape is the cross section?
Malik wrote rectangle (check this). That is not correct. What is the right answer?
Answer. rectangle
Malik’s answer rectangle (check this) is off. rectangle
12.
Think
Ava tried this problem:
A plane slices a right cylinder perpendicular to the base through the axis. What shape is the cross section?
Ava wrote rectangle (check this). That is not correct. What is the right answer?
Answer. rectangle
Ava’s answer rectangle (check this) is off. rectangle

Original extra practice. Keys are computed from the items, not guessed.

L27 · Plane sections of three-dimensional figures