Oliver

10-26-2013, 03:56 AM

What is the volume of a cube given that its surface area is 150 \ in^2?

(A) 75 \ in^3

(B) 100 \ in^3

(C) 125 \ in^3

(D) 250 \ in^3

Thanks!:D:D

nicole

10-26-2013, 03:57 AM

Let a be the length of the cube’s side. The surface area of the cube is 6a^2.

So, 6a^2=150 \Rightarrow a^2=25 \Rightarrow a=5 \ in

Finally, the volume of the cube is equal to a^3=5^3=125 \in^3

Therefore the correct answer is (C).

Hope these help!!;)

Powered by vBulletin® Version 4.2.2 Copyright © 2018 vBulletin Solutions, Inc. All rights reserved.