Question

A ball is exactly fit inside the cubical box of side a unit what is the volume of the ball

Answer 1

i think the answer should be 4÷3 π a^3 because volume of sphear is 4/3π r^3

Answer 2

volume of ball =

$\frac{4}{3} \pi {r}^{3}$

as diameter is equal to side

therefore, diameter = a unit

radius =

$\frac{a}{2}$

therefore volume of ball =

$\frac{4}{3} \pi { \frac{a}{8} }^{3 }$

$\frac{1}{6} \pi {a}^{3}$