SOLUTION: Mark is interested in measuring the height of a tree in his yard. He measures the length of the tree's shadow at 18ft at the same time his own shadow is 3ft 6 inches. If mark is 5"

Question 947280: Mark is interested in measuring the height of a tree in his yard. He measures the length of the tree's shadow at 18ft at the same time his own shadow is 3ft 6 inches. If mark is 5" 10" how tall is the tree.

Please help I am stuck
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Mark is interested in measuring the height of a tree in his yard. He measures the length of the tree's shadow at 18ft at the same time his own shadow is 3ft 6 inches. If mark is 5" 10" how tall is the tree.
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Use a proportion::
tree/shadow = man/shadow
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Note:: 5 ft 10 inches = [5 10/12] ft
t/18 = [5 10/12]/3.5
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t = 18[5.8333l/3.5]
tree = 30 ft
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Cheers,
Stan H.
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