Calculate the perimeter of a sector of a circle of raduis 12cm and angle 60o.

Calculate the perimeter of a sector of a circle of raduis 12cm and angle 60o.

  • A.
    (12 + 4(pi))cm
  • B.
    (24 + 4(pi))cm
  • C.
    (12 + 6(pi))cm
  • D.
    (24 + 6(pi))cm
Correct Answer: Option B
Explanation

Perimeter = 2r + (frac{theta}{360}) x 2(pi)r
= 2(12) + (frac{60}{360}) x 2 x (pi) x 12
= (24 + 4(pi))cm

There is an explanation video available below.

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