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AB = AC AC = 2 AD As we know, AD = AP × AB ⇒ AD = 2.5 × AC ⇒ AD = 2.5 × 2AD AD = 5 cm ⇒ AC = 2 × 5 = 10 cm ∴ AB = AC = 10 cm
129, 160, 224, ?, 459, 634
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