Question

The side of a cube whose surface area is

600 $c{m}^2$ is ________.
A. 6 cm
B. 10 cm
C. 100 cm
D. 60 cm
[1 mark]

Answer 1

The surface area of a cube with side $a$ is $6a^2$.
So, we have $6a^2$ = $600c{m}^2$
$a^2$ = 100
Therefore, $a=10cm$
So, the side of a cube whose surface area is 600 $c{m}^2$ is 10 $cm$.

[1 mark]