Shayla H.

asked • 07/14/19

In triangle ABC,m<A=57°,m<B=37, and a=11. Find "c" to the nearest tenth.

A. 15.7

B. 12.5

C.14.1

D. 13.1

1 Expert Answer

By:

Mark M. answered • 07/14/19

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Mathematics Teacher - NCLB Highly Qualified

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Use Law of Sines:


c / sin 86°° = 11 / sin 57


Can you solve for c and answer?

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Shayla H.

I got 13.1?
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07/14/19

Shayla H.

How did you get 86°?
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07/14/19

David S.

tutor
The angle across from c would come from taking the other two angles and finding the third using the sum of interior angles being 180 degrees for any triangle.
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07/14/19

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