Asked by Gems

In triangle ABC, measure of angle A is 30 degrees. AC=4, AB=3 square root of 3. Find BC.

9 years ago

Answered by Reiny

clear case of the cosine law

BC^2 = 4^2 + (3√3)^2 - 2(4)(3√3)cos30°
carry on

9 years ago

Answered by Gems

square root of 7?

9 years ago

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