CALCULATE A PERIMETER OF A SECTOR OF A CIRCLE OF RADIUS 7CM WHICH SUBTENDS ANGLE 6ODEGREE AT A CENTRE.

Answer 1

arc = rθ = 7(π/3)
perimeter = 2r + arc

Answer 2

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Answer 3

A sector of a circle subtends angle 120° at the centre.what is the perimeter of the sector if its radius is 7cm.