matu10-3

Question

Answer 1

(1)

Step 1:

The length of the rectangular crate is .

The width of the rectangular crate is .

.

.

The height of the rectangular crate is .

.

Step 2:

The surface area of the rectangular crate is .

Substitute , and .

The area of the rectangular crate is .

Solution :

The area of the rectangular crate is .