Question

In part B, you found the perimeter of side AEHD. What is the perimeter of any cross section that is parallel to this side?

Answer 1

The perimeter of any cross section that is parallel to side AEHD will be
`12\ in`

Explanation:

we know that

The side AEHD is a square

The perimeter of a square is equal to

`P=4b`

where

b is the length side of the square

we have

`b=3\ in`

substitute

`P=4(3)=12\ in` -----> perimeter of side AEHD

therefore

The perimeter of any cross section that is parallel to side AEHD will be
`12\ in`