Find the measure of angle B rounded to 3 decimal placesSolut

Find the measure of angle B rounded to 3 decimal places.

Given angle C = 48 degrees , c = 63 , b = 22

By Sine Rule we get

b/sinB = c/SinC

22/SinB = 63/Sin(48)

sin(B) = 22 *Sin(48) /63

= 22* (0.7431)/63

= 0.2595

B = 15.0404 Degree

Round off answer B = 15.04 degrees