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A 25m ladder is placed against a vertical wall. How much closer will the foot of the ladder be to the wall if the ladder is 4 m more upward?
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our topic is about pythagorean theorem btw. please help me answer this !

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Using Pythagorean theorem:

[tex]25² = x² + 4²[/tex]

[tex]625 = x² + 16[/tex]

[tex]x² = 625 – 16[/tex]

[tex]x² = 609[/tex]

[tex]x = \sqrt{609} ≈ 24.68 m[/tex]

Answer: 24.68m

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