SOLUTION: Two side of a triangle are 50m and 60m long. The angle included between these sides are 30 degrees, what is the interior angle opposite the longest side?

Question 992778: Two side of a triangle are 50m and 60m long. The angle included between these sides are 30 degrees, what is the interior angle opposite the longest side?
Answer by psbhowmick(878) (Show Source): You can put this solution on YOUR website!
Let us use the cosine rule first.
a = 50
b = 60
C = 30 degrees

So largest side is b = 60 m.

Using Sine rule

B = 86.3 degree
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