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Mathematics 8 Online
OpenStudy (anonymous):

Suppose you situate a small mirror between yourself and the wall so that when you look into the mirror you see the top of the wall. If you’re 4ft from the mirror; the mirror is 15ft from the wall, and your eyes are 6ft from the floor, determine the height of the wall

ganeshie8 (ganeshie8):

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ganeshie8 (ganeshie8):

|dw:1379264565168:dw|

ganeshie8 (ganeshie8):

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ganeshie8 (ganeshie8):

similar triangles, setup an useful proportions to solve height of wall

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