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5 July, 11:43

A twenty-five foot ladder just reaches the top of a house and forms an angle of 41.5° with the wall of the house. how tall is the house? round your answer to the nearest 0.1 foot.

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  1. 5 July, 11:45
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    So to find this we must use cos (41.5 degrees) so the equation is cos (41.5) = x/25 we times both sides by 25. We also find out what cos 41.5 is in this step. so 0.75x25 = x. Therefore x=18.8. the house is 18.8 feet tall
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