Basic Math Examples



\begin{matrix} r = & 10 \end{matrix}

$\begin{array}{r} r = & 10 \end{array}$

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 = 10

$r = 10$ into the formula for the area of a circle. Pi

π

$π$ is approximately equal to

3.14

$3.14$ .

π \cdot 10^{2}

$π \cdot 10^{2}$

Step 3

Raise

10

$10$ to the power of

2

$2$ .

π \cdot 100

$π \cdot 100$

Step 4

Move

100

$100$ to the left of

π

$π$ .

100 π

$100 π$

Step 5

The result can be shown in multiple forms.

Exact Form:

100 π

$100 π$

Decimal Form:

314.15926535 \dots

$314.15926535 \dots$

 $\begin{array}{r} r = & 10 \end{array}$

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