Find the area of a sector with a central angle of 40 degrees and a diameter of 12 cm.

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02-03-2017
Mathematics

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Find the area of a sector with a central angle of 40 degrees and a diameter of 12 cm.

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baabaagreysheep baabaagreysheep · Answer 1 · 2017-03-02T21:12:41+01:00

baabaagreysheep baabaagreysheep

02-03-2017

First you need to find the area of the circle by doing πr², in which r is 6 because 12 ÷ 2 = 6. π × 6² = 36π. 360 ÷ 40° = 9, so you need to divide 36π by 9 which is 4π. 4π is equal to 12.57cm², which is your final answer. I hope this helps!

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