Asked by Sue
In triangle ABC, side a=7, b=6, and c=8. Find the measure of angle B to the nearest degree.
Answers
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°
6^2 = 7^2 + 8^2 - 2(7)(8)cos B
let me know if you don't get angle B = 47°
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