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ABC is an isosceles triangle in which AB...

ABC is an isosceles triangle in which AB=AC =20 cm and BC=24 cm. PQRS is a rectangle drawn inside the isosceles triangle. Given PQ=SR=y cm and PS=QR=2x cm.
Prove that : `y =16 -(4x)/(3)`.

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The correct Answer is:
`y=16-(4x)/(3)`
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