Question

Please help me on this question

A slice is made parallel to the base of a right rectangular pyramid, as shown.

What is the area of the resulting two-dimensional cross-section?

Enter your answer in the box.

Answer 1

all you need to do is the shaded area, which is 3.5x2
3.5•2=7
7 is your answer

Answer 2

`7\ mm^(2)`

Explanation:

we know that

The area of the resulting two-dimensional cross-section is the area of a rectangle

The area of a rectangle is equal to

`A=bh`

we have

`b=3.5\ mm`

`h=2\ mm`

substitute

`A=3.5*2=7\ mm^(2)`