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December 13th, 2018, 06:03 PM   #1
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Find the area of the shared region.

So far, for number 14 I believe the area of the circle is 12pi. I just don't know how to solve the additional information. For number 15, I'm completely lost. Please help.
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Last edited by skipjack; December 13th, 2018 at 07:33 PM.

December 13th, 2018, 06:50 PM   #2
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Quote:
 Originally Posted by Etrujillo So far, for number 14 I believe the area of the circle is 12pi. I just don't know how to solve the additional information. For number 15, I'm completely lost. Please help.
You seem unaware of the basics: attending math classes?
If so, what grade are you in?

14: area is pi * r^2 = pi * 6^2 = pi * 36

15: what is the area of the right triangle in top right quadrant?

Last edited by skipjack; December 13th, 2018 at 07:34 PM.

 December 13th, 2018, 07:27 PM #3 Senior Member     Joined: Jul 2010 From: St. Augustine, FL., U.S.A.'s oldest city Posts: 12,211 Thanks: 521 Math Focus: Calculus/ODEs You (or someone using the same username) posted these same questions on another site earlier today, showed your work, which I checked and found you were correct. Thanks from topsquark and v8archie
December 13th, 2018, 07:55 PM   #4
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Quote:
 Originally Posted by Etrujillo I believe . . . I'm completely lost.(
Start by putting some letters on the diagram, so that you can make precise statements about it. Then write down what you can work out, even if it seems unnecessary or irrelevant.

What formula do you know for calculating the area of a triangle? Is there a corresponding formula for the area of a sector of a circle?

 December 14th, 2018, 02:33 AM #5 Math Team   Joined: Dec 2013 From: Colombia Posts: 7,681 Thanks: 2659 Math Focus: Mainly analysis and algebra In each question there is a large fraction of a circle touching a triangle. You can find the area of both of these. For 15, you can also find the area of the entire circle from which you subtract the parts you don't need.
 December 14th, 2018, 05:11 AM #6 Math Team   Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 14,597 Thanks: 1038 15: a = total area of circle calculate 3/4 of a add area of right-angle triangle HOKAY?

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