Question 182421
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Find the area of a circle of radius 25.  From that, subtract the area of a circle of radius 11 (because 25 - 14 = 11).  Divide that result by 3 (because 120 is one-third of 360).


*[tex \LARGE \text{          }\math \frac {\pi(25)^2 - \pi(11)^2}{3}]


*[tex \LARGE \text{          }\math \frac {625\pi - 121\pi}{3}]


*[tex \LARGE \text{          }\math \frac {504\pi}{3}]


*[tex \LARGE \text{          }\math 168\pi] square units.


Which is the exact answer.  If you want a numerical approximation, round to the nearest square units because your given measurements are to the nearest unit.


And remember:  The fattest guy at King Arthur's Round Table was Sir Cumference.  He got that way eating too much *[tex \Large \pi].



John
*[tex \LARGE e^{i\pi} + 1 = 0]
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