find the measure of angle C Find measure length of a and cSo

find the measure of angle C.
Find measure length of a and c.

Solution

If we have two sides and one of its corresponding angle then apply sine rule

If we have two angles and on of its correspoding side is given then apply sine rule

Else cosine rule

Option A : law of sines

a/sinA = b/sinB ; a/sin73 = 20.1/sin10

a = 110.69

C = 180 - A - B = 180 - 10 - 110.69 = 59.30 deg