# How do you find the measure of each of the angles of a triangle given the measurements of the sides are 30, 35, 45?

##### 1 Answer

Jan 3, 2018

Angle opposite to 30

Angle opposite to 35

Angle opposite to 45

#### Explanation:

Use the law of cosines:

However, we require angle measures, therefore, we can put the entire equation in terms of

Angle opposite to 30:

Angle opposite to 35:

Angle opposite to 45: