Unit 1, Lesson 13
Polyhedra
Grade 6
Practice
Problem 1
Select all the polyhedra.
A
B
C
D
E
Problem 2
- Is this polyhedron a prism, a pyramid, or neither? Explain how you know.
- How many faces, edges, and vertices does it have?
Problem 3
Tyler said this net cannot be a net for a square prism because not all the faces are squares.
Do you agree with Tyler? Explain your reasoning.
Problem 4
Explain why each of these triangles has an area of 9 square units.
Problem 6
Find the area of the shaded region. Show or explain your reasoning.
2 congruent right triangles touching height to height. On each, base = 7 centimeters, height = 5 centimeters. square with side length = 2 centimeters cut out from the center of the figure. area around the square shaded.