Basic Math Examples

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$\begin{array}{r} r = & 2.5 \end{array}$

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

$r = 2.5$ into the formula for the area of a circle. Pi

$π$ is approximately equal to

$3.14$ .

$π \cdot {2.5}^{2}$

Step 3

Raise

$2.5$ to the power of

$2$ .

$π \cdot 6.25$

Step 4

Multiply

$π$ by

$6.25$ .

$19.63495408$