Basic Math Examples

 $\begin{array}{r} r = & 8 cm \end{array}$

Step 1

The area of a circle is equal to Pi $π$ times the radius $r$ squared.

$π \cdot {(r a d i u s)}^{2}$

Step 2

Substitute in the value of the radius $r = 8$ into the formula for the area of a circle. Pi $π$ is approximately equal to $3.14$ .

$π \cdot 8^{2}$

Step 3

Raise $8$ to the power of $2$ .

$π \cdot 64$

Step 4

Move $64$ to the left of $π$ .

$64 π {(cm)}^{2}$