Question

I really need some help it's hard to understand!

Answer 1

460

Explanation

surface area is when you find the area of all the sides and add them together.

top: 12 x 10 = 120

botton: 12 x 10 = 120

front: 10 x 5 = 50

back: 10 x 5 = 50

left: 5 x 12 = 60

right: 5 x 12 = 60

460

Answer 2

C you just add them divide by 2