Question

A cube has edge length 6 in. If the edge length of the cube is doubled, what happens to the surface area?
A: The surface area is doubled.
B: The surface area is multiplied by 4.
C: The surface area is multiplied by 1/4.
D: The surface area is halved.

Answer 1

the answer would be B

Answer 2

If the edge length of the cube is doubled the surface area is multiplied by 4.

Surface area of a cube

surface area = 6l²

where

• l  = length

Therefore,

When the edge length = 6 inches

surface area = 6 × 6² = 6 × 36  = 216 inches²

When the length of the cube is doubled. Therefore,

length = 2(6) = 12 inches

surface area = 6 × 12² = 6 × 144 = 864 inches²

Therefore, If the edge length of the cube is doubled the surface area is multiplied by 4.

learn more on surface area here: https://brainly.com/question/10716672