Basic Math Examples

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\begin{array}{r} r = & 2 \end{array}

$\begin{array}{r} r = & 2 \end{array}$

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 = 2

$r = 2$ into the formula for the area of a circle. Pi

π

$π$ is approximately equal to

3.14

$3.14$ .

π \cdot 2^{2}

$π \cdot 2^{2}$

Step 3

Raise

2

$2$ to the power of

2

$2$ .

π \cdot 4

$π \cdot 4$

Step 4

Move

4

$4$ to the left of

π

$π$ .

4 π

$4 π$

Step 5

The result can be shown in multiple forms.

Exact Form:

4 π

$4 π$

Decimal Form:

12.56637061 \dots

$12.56637061 \dots$

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