3 years ago

Find Y. round to the nearest tenth.

Mathematics

1 answer:

masya89 [10]3 years ago

3 0

9514 1404 393

Answer:

32.7°

Step-by-step explanation:

Solve the given equation for C, then fill in the given values and evaluate.

C = arccos((a² +b² -c²)/(2ab))

Y = arccos((50² +90² -55²)/(2·50·90)) = arccos(7575/9000) ≈ 32.7°

Y is angle A in the attached triangle solver.

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