Solve for S S=2pi*4(4+8)

$S = 2 π \cdot 4 (4 + 8)$

Remove parentheses.

$S = 2 π \cdot (4 (4 + 8))$

Simplify $2 π \cdot (4 (4 + 8))$ .

Add $4$ and $8$ .

$S = 2 π \cdot (4 \cdot 12)$

Multiply $4$ by $12$ .

$S = 2 π \cdot 48$

Multiply $48$ by $2$ .

$S = 96 π$

$S = 96 π$

The result can be shown in multiple forms.

Exact Form:

$S = 96 π$

Decimal Form:

$S = 301.59289474 \dots$

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