SOLUTION: how do you find the smallest angle of a triangle with sides 11cm, 13cm and 17cm?
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Question 478114: how do you find the smallest angle of a triangle with sides 11cm, 13cm and 17cm?
Answer by robertb(5830) (Show Source): You can put this solution on YOUR website!
The smallest angle should be the one opposite the shortest side, namely the side with length 7.
From the cosine law,
==> -337 = -442*cos A
==>
==> A = 40.32 degrees, to 2 decimal places.
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