Question

For the surface area of a rectangular prism do i have to double it because its a 3D shape? For example if the length of it is 12, the width 8 and the height 6. would the equation look like this: A= 2(8*12+6*12+6*8)? or would it look different.

Answer 1

So once you find the area of one side of the rectangle, multiply it by four. Then find the area of the sides.