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Find the Surface Area sphere (7.4)

 $\begin{array}{r} r = & 7.4 \end{array}$

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 $r = 7.4$ into the formula to find the surface area of the sphere. Pi $π$ is approximately equal to $3.14$ .

$4 \cdot π \cdot {7.4}^{2}$

Step 3

Raise $7.4$ to the power of $2$ .

$4 π \cdot 54.76$

Step 4

Multiply $4 π \cdot 54.76$ .

Multiply $54.76$ by $4$ .

$219.04 π$

Multiply $219.04$ by $π$ .

$688.13445484$

$688.13445484$

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