# What is the distance between #(2 , (5 pi)/8 )# and #(-1 , (1 pi )/3 )#?

##### 1 Answer

Oct 22, 2016

The distance is

#### Explanation:

Change the -1 radius to +1 by adding

Find the difference between the two angles:

We can find the distance between them using the Law of Cosines where side