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/Tag: Perimeter Sector
5 07, 2016

Perimeter Sector

By |2016-10-21T13:17:00+10:00July 5th, 2016||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 [...]