IvyElizabeth IvyElizabeth

30-06-2016
Mathematics

contestada

In triangle ABC, angle B = 30°, a = 210, and b = 164. The measure of angle A to the nearest degree is

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Аноним Аноним

30-06-2016

Try the law of sines
[tex]\frac{\sin A}{a}=\frac{\sin B}{b}[/tex]
[tex]\frac{\sin A}{210}=\frac{\sin 30\°}{164} \\ \\ \sin A=\frac{210\sin 30\°}{164} \\ \\ \sin A = 0.64 \\ \\ A=\sin^{-1}0.64=39.81\°[/tex]

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SkyRyze SkyRyze

16-07-2020

Answer:

39.81

Guy above me explained it.

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