Basic Math Examples



\begin{array}{r} r = & 16 \end{array}

$\begin{array}{r} r = & 16 \end{array}$

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 = 16

$r = 16$ into the formula for the area of a circle. Pi

π

$π$ is approximately equal to

3.14

$3.14$ .

π \cdot 16^{2}

$π \cdot 16^{2}$

Step 3

Raise

16

$16$ to the power of

2

$2$ .

π \cdot 256

$π \cdot 256$

Step 4

Move

256

$256$ to the left of

π

$π$ .

256 π

$256 π$

Step 5

The result can be shown in multiple forms.

Exact Form:

256 π

$256 π$

Decimal Form:

804.24771931 \dots

$804.24771931 \dots$