Basic Math Examples



\begin{matrix} r = & 3.6 \end{matrix}

$\begin{array}{r} r = & 3.6 \end{array}$

Step 1

The area of a circle is equal to Pi

π

$π$ times the radius

r

$r$ squared.

π \cdot {(r a d i u s)}^{2}

$π \cdot {(r a d i u s)}^{2}$

Step 2

Substitute in the value of the radius

r = 3.6

$r = 3.6$ into the formula for the area of a circle. Pi

π

$π$ is approximately equal to

3.14

$3.14$ .

π \cdot {3.6}^{2}

$π \cdot {3.6}^{2}$

Step 3

Raise

3.6

$3.6$ to the power of

2

$2$ .

π \cdot 12.96

$π \cdot 12.96$

Step 4

Multiply

π

$π$ by

12.96

$12.96$ .

40.71504079

$40.71504079$