Question

1 Count the number of cubes for the following solid figure.

2 The figure given below is a three-dimensional object.

a. Name the number of edges, faces and vertices of the solid.

b. What is the shape of the cross-section if the solid is cut vertically

from the middle?​

Answer 1

answer number 1) is 31

Answer 2

(1) Answer:   36 cubes

Explanation:

With the given figure we found 31 single unit cubes

and one 3×3 unit cubes

and four 2×2 unit cubes

So on the whole 36 cubes

(2)

(a)

Number of edges = 18

Number of faces =  8

Number of vertices = 12

(b)

If the given solid is cut vertically its cross section is in rectangular shape.