# What is the length of the shorter diagonal of the parallelogram if the lengths of the two adjacent sides of parallelogram ABCD are 8 and 14 units respectively and if the degree measure of the included angle is 60º?

##### 1 Answer

Dec 12, 2014

Its typically helpful to start with a drawing. Here is

We are looking for the length of the shorter diagonal, which is segment

The law of cosines tells us that