Trigonometry

Solve triangle ABC:

B= 60 degrees, C= 90 degrees a= 4 feet

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asked by Adam
  1. right triangle
    30,60,90
    sin A = 1/2 = 4/c
    so c = 8
    so b = sqrt(8^2-4^2) = 4 sqrt 3

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    posted by Damon

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