### Home > PC3 > Chapter 6 > Lesson 6.2.3 > Problem 6-111

6-111.

Harold, the happy concrete guy, got a call on the phone about some concrete he has to pour for an oddly shaped triangular patio. The only information he is given is that the side lengths were

Calculate the angles for Harold so he can stay happy.

Draw and label a diagram. Then use the Law of Cosines to determine the angle measures.

What is the area of the patio that Harold will be forming?