Question

A spherical cake of radius 21cm is cut into 4 equal pieces.what is the volume of each piece?

Answer 1

volume of sphere =

$4 \div 3 \times radius \times radius \times radius =$

=

$4 \div 3 \times 21 \times 21 \times 21$

=

$4 \times 7 \times 21 \times 21$

=

$28 \times 21 \times 21$

=28×441

=12348cm cube

it is divided into four parts so each part volume is volume of Sphere/4

=12345/4

=3087cmcube