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Asked by Sue

In triangle ABC, side a=7, b=6, and c=8. Find the measure of angle B to the nearest degree.
15 years ago

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Answered by Reiny
use the cosine law in this form

6^2 = 7^2 + 8^2 - 2(7)(8)cos B

let me know if you don't get angle B = 47°
15 years ago
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In triangle ABC, side a=7, b=6, and c=8. Find the measure of angle B to the nearest degree.

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