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Mathematics 11 Online
OpenStudy (anonymous):

The sides of a triangle measure 14.9 centimeters, 23.8 centimeters, and 36.9 centimeters. Find the measure of the angle with the least measure.

OpenStudy (asnaseer):

You are given 3 sides and are asked to find angle. What rule come to mind?

OpenStudy (anonymous):

cos

OpenStudy (asnaseer):

correct. Now use the fact that the smallest angle will be opposite the smallest side, then apply the cosine rule

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