In triangle ABC, AC=13, BC=84, and AB=85. Find the measure of angle C

Brad Wickwire asked Jan 1, 2022

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Brad Wickwire asked Jan 1, 2022

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24 votes

Answer:

90°

Explanation:

Angle C = arccos((84²+13²-85²)/(2×84×13))

= arccos(0/2184)

= arccos(0)

= 90°

Answered by GAUTHMATH

2.7k points

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