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March 25, 2017

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A lamppost casts a shadow of a man who is standing 15 feet away from the lamppost. The shadow is 5 feet long. The angle of elevation from the tip of the shadow to the lamp is 50. To the nearest foot, the lamppost is _____ feet tall.
(Points : 2)

  • Math Urgent help please - ,

    As always, draw a diagram. Now, recalling your trig functions, it is easy to see that

    h/(15+5) = tan 50°

    now, just solve for h

  • Math Urgent help please - ,

    55 feet

  • Math Urgent help please - ,

    24 feet, because if you solve for h like Steve said, that's your result

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