Question

Find all the missing elements:
40°
120°
8
C = [?]º a = [ ] c = [ ]

Answer 1

C=20° a=10.8 c= 4.3

Explanation:

first we need to find the value of angle C by subtracting the sum of angle A and B from 180°.

to find c and a we need to use sin rule which states that sinB/b=sinA/a=sinC/c respectively