voltagex23 voltagex23

27-02-2017
Mathematics

Answered

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

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

Verified Answer :

sdmatera sdmatera

27-02-2017

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

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

81pi7/18 = 63/2pi

Hope this helps

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