SOLUTION: find triangle A= pi/3 b= 2 m c=4m

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Question 571003: find triangle
A= pi/3
b= 2 m
c=4m
Answer by Alan3354(69443) About Me  (Show Source):
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find triangle
A= pi/3
b= 2 m
c=4m
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Assuming side a is opposite angle A, etc.
a%5E2+=+b%5E2+%2B+c%5E2+-+2%2Ab%2Ac%2Acos%28A%29%29
a%5E2+=+4+%2B+16+-+16%2A0.5+=+12
a+=+2sqrt%283%29 meters
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Use the sine law to find another angle
sin(A)/a = sin(B)/b
sin(B) = b*sin(A)/a
B = pi/6
----
C = pi - (A + B)
C = pi/2