Question

How do you solve the triangle given a = 8, b = 10, and α = 67 degrees?

Answer 1

Assuming that `alpha` is the angle between a and b, then the third length say 'c' is equal to `c= sqrt ( a^2 + b^2 -2ab cos alpha`.

Explanation:

The formula mentioned in the answer is the cosine rule and is used when you are either given with all the three length of a triangle and you've to find a certain angle or two lengths and an angle between them is given ( this case ) .

Hope that helps,
Cheers.