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  • 11-09-2017
  • Mathematics
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Given that A=84, B=66 and a=13 solve triangle ABC. Round to the nearest hundredth.

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Аноним Аноним
  • 11-09-2017
Using the sine rule
b / sin B =  a / sin A so:-

b / sin 66 = 13 / sin 84th

Angle C = 180 - (66+84) =  30 degrees

c / sin 30 = 13/sin84

c = (13*sin 30) / sin 84  =  6.54 to nearest 1/100th

That s it.
 
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