A triangle has sides A, B, and C. Sides A and B are of lengths #8# and #9#, respectively, and the angle between A and B is #(pi)/8 #. What is the length of side C?
1 Answer
Feb 29, 2016
c=3.4585
Explanation:
Given here are sides a =8 and b=9 and angle C=
Cos C=
= 145-144(0.9238) =145-133.0386=11.9613
c= 3.4585