Find the Volume sphere (9cm)

 $\begin{array}{r} r = & 9 cm \end{array}$

The volume of a sphere is equal to $\frac{4}{3}$ times Pi $π$ times the radius cubed.

$\frac{4}{3} \cdot π \cdot {(r a d i u s)}^{3}$

Substitute the value of the radius $r = 9$ into the formula to find the volume of the sphere. Pi $π$ is approximately equal to $3.14$ .

$\frac{4}{3} \cdot π \cdot 9^{3}$

Combine $\frac{4}{3}$ and $π$ .

$\frac{4 π}{3} \cdot 9^{3}$

Raise $9$ to the power of $3$ .

$\frac{4 π}{3} \cdot 729$

Cancel the common factor of $3$ .

Factor $3$ out of $729$ .

$\frac{4 π}{3} \cdot (3 (243))$

Cancel the common factor.

$\frac{4 π}{3} \cdot (3 \cdot 243)$

Rewrite the expression.

$4 π \cdot 243$

Multiply $243$ by $4$ .

$972 π {(cm)}^{3}$