Geometryhard · Past Paper
If the sector of a circle of radius 6 cm has an angle of 120 degrees, find the perimeter of the sector.
A12 + 4*pi
B4*pi
C6 + 2*pi
D12 + 2*pi
✓ Correct Answer: A — 12 + 4*pi
Arc length = (120/360) * 2 * pi * 6 = 4*pi. Perimeter = arc length + 2r = 4*pi + 12.
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