Question

Find the lateral surface area and total surface area of a cube of edge 10 cm.

Answer 1

Edge of cube (a) = 10 cm

(i) $\therefore \text{Lateral surface area}=4a^2$

$=4\times (10{)}^2=4\times 100c{m}^2=400c{m}^2$

(ii) $\text{Total surface area}=6a^2=6\times (10{)}^{2}c{m}^2$

$=6\times 100=600c{m}^2$