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Mathematics 8 Online
OpenStudy (anonymous):

A ladder is resting against a wall. The ladder and the ground make an angle of 42.5° and the ladder is 10 feet long. How far away from the wall is the ladder?

OpenStudy (anonymous):

|dw:1358865525275:dw| then use the cosine function and set the solution 10cos42.5=7.37 ft.

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