2016
Mathematics
67ca00ce0c643c71d77dee1f
Calculate the perimeter of a sector of a circle of raduis 12cm and angle 60°.
A.
(12 + 4π)cm
B.
(24 + 4π)cm
C.
(12 + 6π)cm
D.
(24 + 6π)cm
Correct Answer: (24 + 4π)cm
Explanation
Perimeter = 2r + θ/360 x 2πr = 2(12) + 60/360 x 2 x π x 12 = (24 + 4π)cm
Perimeter = 2r + θ/360 x 2πr = 2(12) + 60/360 x 2 x π x 12 = (24 + 4π)cmTHIS WEEK's
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