Practice | Hashtable

1. The surface area of a cube is 150 cm². Its volume is :

A. 64 $c m^{3}$

B. 125 $c m^{3}$

C. 150 $c m^{3}$

D. 216 $c m^{3}$

Solution:

\begin{aligned} 6 a^{2} = 150 \\ \Rightarrow a^{2} = 25 \\ \Rightarrow a = 5 \end{aligned}

∴ Volume :

a^{3} = 5^{3} = 125 c m^{3}

You must login to add comments. Login now.