Question

Find the volume of a cube having edge is 2m 50cm.

Answer 1

edge= 2m 50 cm=2.50 m
or
250 cm

volume of the cube = edge^3
=2.50×2.50×2.50=15.625 m^3
or
volume =250×250×250=15,625,000 cm^3

Answer 2

$volume \: of \: cube = {a}^{3}$
a= 2.5 m
2.5 x 2.5 x 2.5
=15.625 cubic units