Basic Math Examples



$\begin{array}{r} r = & 5 \end{array}$

Step 1

The surface area of a sphere is equal to

$4$ times Pi

$π$ times the radius squared.

$4 π \cdot {(r a d i u s)}^{2}$

Step 2

Substitute the value of the radius

$r = 5$ into the formula to find the surface area of the sphere. Pi

$π$ is approximately equal to

$3.14$ .

$4 \cdot π \cdot 5^{2}$

Step 3

Raise

$5$ to the power of

$2$ .

$4 π \cdot 25$

Step 4

Multiply

$25$ by

$4$ .

$100 π$

Step 5

The result can be shown in multiple forms.

Exact Form:

$100 π$

Decimal Form:

$314.15926535 \dots$