Question

What is the surface area of this rectangular prism?



A.
836 in2

B.
520 in2

C.
209 in2

D.
418 in2

Answer 1

https://static.k12.com/calms_media/media/395500_396000/395728/2/50b1f7cb2a37745baa7a4aff25ecb2552e239bc1/53268_question.jpg

Answer 2

Find the area of each rectangle and add them all up.

There are two rectangles with a width of 5 and a height of 8.

There are two rectangles with a width of 5 and a height of 13.

There are two rectangles with a width of 8 and a height of 13.

Find the area of all the rectangles and add them up. :)

Answer 3

209

Answer 4

That's wrong. :(

Answer 5

What is 5 * 8 * 2 = ?

We're multiplying it by 2 since there are two rectangles like that.

What is 5 * 13 * 2 = ?

What is 8 * 13 * 2 = ?

Add up those three numbers to get the correct final answer. :)

Answer 6

80 For the first one 130For the second one and 208 For the third one

Answer 7

So it would be 418

Answer 8

That is correct!