Question

Solve the triangle.
a=24.9 b=15.8 c=24.4
What is the degree measure of angle A?
What is the degree measure of angle B?
What is the degree measure of angle C?

Answer 1

are you familiar with the cosine rule?

Answer 2

no. :(

Answer 3

\[c ^{2}=a ^{2}+b ^{2}-2ab \cos C\]

Answer 4

by re-arranging the equation and substituting values for a,b&c you can work out cosC and hence the angle C

Answer 5

after that you can use the sine rule to work out A & B