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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

Triangle labeled as follows: bottom side, 15 cm, left bottom angle, 36 degrees, right bottom angle, 25 degrees.