### Home > PC3 > Chapter 9 > Lesson 9.1.4 > Problem 9-84

9-84.

Calculate the area of the triangle shown at right.

Use the Law of Cosines to determine the length of one of the missing sides.

area

where is the angle between sides

*and*

9-84.

Calculate the area of the triangle shown at right.

Use the Law of Cosines to determine the length of one of the missing sides.

area

where is the angle between sides