Thread: Find area of a triangle

Hi,

Im studying on an exam and im stuck at this question.

The area of circle P is 36pi in^2
If CB=6 in, find the area of triangle ABC?




I know that the angle C is right, is the sides CB and AC equal then?

Plz help!!

Hint: Use

Originally Posted by julieta

Hi,

Im studying on an exam and im stuck at this question.

The area of circle P is 36pi in^2
If CB=6 in, find the area of triangle ABC?




I know that the angle C is right, is the sides CB and AC equal then?

Plz help!!

No, not necessarily. But you are told that CB= 6 and you can find AB: the area of the circle is so you can find r, then AB. And, of course, you can find CA using the pythagorean theorem.

Hi Julieta,
Previous responders have given you equations for finding either a diameter or radius of given circle You should redraw your improperly drawn triangle in the semicircle and from it calculate the area of triangle.



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