# Math 7

how high is a tree that casts a 25 foot shadow at the same time a 6 foot pole casts a 10 foot shadow? Please help! I don't understand how to solve any problem like this!!

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1. draw a diagram. Using similar triangles, you can see that if the tree has height h,

h/25 = 10/6

The ratio of height:shadow is the same for both pole and tree.

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posted by Steve

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