Question

How many square centimeters of construction paper does Reema need in order to exactly cover, with no overlap, $5$ sides of a cube with edges that are $12$ centimeters long?

• A. $60c{m}^2$
• B. $144c{m}^2$
• C. $300c{m}^2$
• D. $720c{m}^2$

Answer 1

The correct option is D $720c{m}^2$

Length of side $=a=12cm$

Area of one face of cube $=a^2={12}^2=144c{m}^2$

$\Rightarrow$ Area of $5$ faces of cube $=5a^2=5\times 144$

$=720c{m}^2$