Question

Please help i need this to be answered really soon please

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.


mm²

Answer 1

The area would be 90 since a right angle is 90 degrees also anything tha is across from the parrel side will be the same exact thing

Answer 2

`7\ mm^(2)`

Explanation:

we know that

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

see the attached figure to better understand the problem

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)`