Question

A cuboidal box is 5 cm by 5cm by 4cm. Find its surface area.

Answer 1

Length of cuboid box (l) = 5cm
Breadth (b) = 5 cm
and height (h) = 4 cm
$\therefore Surfacearea=2(l\times b+b\times h+h\times l)$
= $2(5\times 5+5\times 4+4\times 5)c{m}^2$
= $2(25+20+20)=2\times 65c{m}^2$
= $130c{m}^2$