# Angles ABC

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A=4.0ft, b=5.0ft, c=8.0ft

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#### Solution Preview

using the cosine rule

c^2 = a^2 + b^2 - 2 ab Cos C

a=4.0ft, b=5.0ft, c=8.0ft C =?

you get C = 125.0966 degrees.

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#### Solution Summary

Angles ABC

Find all the angles ABC

a=4.0ft, b=5.0ft, c=8.0ft

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