Question

In triangle ABC, b = 12, c = 15, and A = 60°.

To the nearest tenth, a =
13.7 << am i correct??

Answer 1

First we have to make sure ABC is a right triangle

Answer 2

yes!

Answer 3

I'm still drawing the graphic but how do you know it is a right triangle?

Answer 4

According to my calculations
the third side is 13.748 - so you are right
and the angles are 60°, 70.893°, and 49.107°
So, it isn't a right triangle and didn't use the Pythagorean Theorem to get the third side.
Well done.