Question

A cardboard of size, 16 cm x 24 cm has been completely used to form a cube. What will be the
size of the cube so formed ?​

Answer 1

answer:

side of the given cube is 8 cm

step by step explanation :

given:

area of cube = 16 cm x 24 cm

= 384 sq.cm

to find:

side of a cube = ?

solution -

by the question,

$area \: of \: cube \: = 6 {a}^{2}\\ 384 = 6 {a}^{2}\\ \frac{384}{6} = {a}^{2} \\ 64 = {a}^{2} \\ \sqrt{64} = a \\ 8 = a \\ a = 8$

∴ side of the given cube is 8 cm