# How do you solve a triangle if you are given C = 15 degrees, a = 6.25, b = 2.15?

##### 1 Answer

May 13, 2015

To begin with, side c can be calculated using the cosine formula, cos C=

cos 15=

c= 4.2101951. Having got side c, get Angle B using the cosine rule again cosB=

=

B= 7.59499.

Angle A would be !80-B-C= 157.404500