Question 563337: I need help dolving an equation?
a=3,c=3, B=64 degrees
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! a=3,c=3, B=64 degrees
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Law of Cosines to find "b":
b^2 = a^2+c^2-2ac*cos(64)
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b^2 = 9 + 9 - 2*3*3*0.4384
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b^2 = 18 - 7.8907
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b^2 = 10.1093
b = 3.1795
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If a = c the angles opposite are Equal:
A + 64 + C = 180 degrees
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A+C = 116 degrees
A = 116/2 = 58 degrees = C
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Cheers,
Stan H.
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