Posted by **MK** on Thursday, December 2, 2010 at 5:56pm.

There is a triangle inside of a circle. I have to find area of the shaded region which is the circle. So i would have to substract the area of the triangle from the area of the circle.

the radius of the circle is 3 inches.

I found the area of the circle..it is 28.27 in.^2

I am given the three angles of the triangle- 80 degrees, 55 degrees, and 45 degrees

how would I find the area of the triangle with the given 3 angles?? plz help with steps!

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