Asked by Alexander
an arc of length 110cm subtends an angle of 150° at the centre of a circle. find the perimeter of the sector
Answers
Answered by
oobleck
since the arc length is s=rθ, the perimeter is p = 2r + s
2(110/(5π/6)) + 110 = 110 + 264/π
2(110/(5π/6)) + 110 = 110 + 264/π
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