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22 September, 09:13

Amanda leaned a 15-foot ladder against the top of her house so she could get on the roof, which is 12 feet from the ground.

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  1. 22 September, 10:48
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    If you're trying to find the missing side of the "triangle" (the distance from the house to where the ladder touches the ground), you would use the pythagorean theorem, a²+b²=c². (c is always hypotenuse)

    a²+b²=c²

    12²+b²=15²

    144+b²=225

    b²=81

    √b²=√81

    b=9
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