An equilateral triangle has an altitude length of 36 feet. Determine the length of a side of the triangle
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the altitude face 60 degree angle in the right triangle, let the side be s, thus
sin (60 degrees) = 18/s
s= 36/sqrt(3) = 12*sqrt(3)
what does "sin" mean and how does it go from 60 degrees to 18/s
sin is trig function sine
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