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Right triangles and trigonometry
In triangle ABC, a=15, b=14, c=10. Find m<B
Skilled2021-06-15Added 108 answers
The given case is SSS (three sides) so use the Law of Cosines: b2=a2+c2−2aosB
Solve for B.
Use a calculator in DEGREE mode: m∠B≈64.5°
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