Trig:
Suppose A = 70 Degrees, B= 38 degrees, a= 35. Find C, b, c. This is a triangle. How do I apply the law of sine and cosine to this triangle to solve for C, b, c.

Question

Trig:
Suppose A = 70 Degrees, B= 38 degrees, a= 35. Find C, b, c. This is a triangle. How do I apply the law of sine and cosine to this triangle to solve for C, b, c.

mathmale · Answer

Since the interior angles of a triangle must add up to 180 degrees, you can immediately find angle C.  What is it?

Next, I'd suggest you graph this triangle, labelling every angle and every side with any given info.

Have you used the Law of Sines before?  the Law of Cosines?  If so, review whatever y ou've learned about choosing one or the other in a particular situation.