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12-143.

Multiple Choice: Determine the perimeter of the sector at right.

$12\pi \; \text{ft}$

$3π \; \text{ft}$

$6 + 3π \; \text{ft}$

$12 + π \; \text{ft}$

none of these

Hint:

Remember that the perimeter of a sector is the sum of all the sides, including the arc length.

$\text{Recall the formal for the arc length: }\frac{m\angle }{360º}(2\pi r)$

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