Perimeter Sector

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5 07, 2016

Perimeter Sector

By |2016-10-21T13:17:00+10:00July 5th, 2016|Tags: , , , , , , |Comments Off on Perimeter Sector

Perimeter Sector $$P=\frac{\theta}{360}\times2\pi\, r+2r$$ worked examples Find the perimeter of this sector, correct to 2 decimal places $$P=\frac{50}{360}\times2\pi\, \times12+2\times12$$ r = 12cm and the angle at the centre = 50°, hence θ = 50 substitute into the forumla $$P=\frac{\theta}{360}\times2\pi\, r+2r$$ L = 34.47cm calculate further examples [...]

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