In a ∆ABC, if AB²=BC²+AC², at which vertex is the right angle?
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Answer:
Therefore,
AB² = AC·AD , BC² = AC·CD
Adding both,
AB² + BC² = AC·AD + AC·CD
AB² + BC² = AC ( AD + CD )
Since AD+CD=AC
AB² + BC² = AC(AC)
AB² + BC² = AC²
Hence prove
Step-by-step explanation:
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