In ΔVWX, w = 55 inches, x = 26 inches and ∠V=103°. Find the length of v, to the nearest inch.
Cos rule
v^2 = x^2 + w^2 - 2 x w cos (103)
v^2 = 26^2 + 55^2 - 2 (26)(55) cos 103 <======== Finish from here ......
+37155 
