Hi,

A 5'6" person walking down the street notices his shadow. 

If the angle of elevation from the tip of their shadow to the sun is 60°

what is the distance from the tip of the shadow to the top of his head

 sin 60 = opp/hyp = 66in/x

 sin 60 = 66/x

   x = 66/sin 60 = 66/.866 = 76.21 in 

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