SOLUTION: In triangle PQR, m < Q = 103 degrees, PQ = 11.2, and QR = 13.1. To the nearest tenth, what is PR?

Algebra ->  Triangles -> SOLUTION: In triangle PQR, m < Q = 103 degrees, PQ = 11.2, and QR = 13.1. To the nearest tenth, what is PR?      Log On


   

Question 1159655: In triangle PQR, m < Q = 103 degrees, PQ = 11.2, and QR = 13.1.
To the nearest tenth, what is PR?
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

In triangle PQR,
m < Q+=+103 degrees,
PQ+=+11.2, and
QR+=+13.1
To the nearest tenth, what is PR?

PR=sqrt%28%28PQ%29%5E2%2B%28QR%29%5E2-2%2APQ%2AQR%2Acos%28Q%29%29
PR=sqrt%28%2811.2%29%5E2%2B%2813.1%29%5E2-2%2A11.2%2A13.1%2Acos%28103%29%29
PR=sqrt%28125.44%2B171.61-293.44%2A%28-0.2249511%29%29
PR=sqrt%28297.05%2B66.0097%29
PR=sqrt%28363.0597%29
PR=19.1