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a ladder 40 long leans against a buliding and reaches a ledge, the foor of the ladde is16 feet from the building . how high is the leadge

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You use Pythagorean Theorem, if u do not know what that means, the formula is this.
a ladder 40 long leans against a buliding and reaches a ledge, the foor of the ladde-example-1
User Shaun Jackman
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