Question

If AC = 5 cm, BC = 12 cm, and , the radius of the circumscribed circle is
cm and mOAC°.

Answer 1

Send a picture?

Answer 2

Okay, well to find the length of AB just use pythagorean theorem which is your diameter, then cut that in half..

Answer 3

So how would I set that up? I know its

a^2+b^2=c^2, but how would I set it up since its a circle

Answer 4

You would just use the measurements of the triangle..

Answer 5

so 5^2 + 12^2 = c^2

Answer 6

And then divide the square root of your c by 2 because you need the radius not diameter.

Answer 7

so it would be 6.5?

Answer 8

I didn't solve for it, but that seems to be about right. :P

Answer 9

Ok so what about the second part, what do I do for it?

Answer 10

http://www.teachertube.com/video/solve-for-angle-in-triangle-in-circle-80962 watch this. I'm pretty sure angle C is 90 degrees btw.

Answer 11

Thank you so much !!!

Answer 12

You're very welcome! :D