voltagex23 voltagex23

28-02-2017
Mathematics

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I'm not sure how to do this I gave it a shot but I'm not quite sure it's right

Im not sure how to do this I gave it a shot but Im not quite sure its right class=

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sdmatera sdmatera

28-02-2017

The are of the whole circle is
A=pi*r^2
A=81pi

360-220=140 so the shaded area is 140 degrees of the circle
140/360=7/18

81pi*7/18 = 63/2pi

Hope this helps

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