Let \(a\) and \(b\) be positive lengths, and consider the following triangles:
Then what are
\(\angle A, \angle D, \angle G\)
in radians, in that order?
+13 Use Law of Cosines for all three problems and you should get the answer pretty quickly.
\(\angle A = \frac{5\pi}{6}\)
\(\angle D = \frac{\pi}{2}\)
\(\angle G = \frac{\pi}{4}\)
