Question

ABC is an isosceles triangle in which AB = AC = 20 cm. PQRS is a rectangle drawn inside the isosceles triangle. Given PQ = SR = y cm and PS = QRV= 2x cm.
Prove that :
$y \: = \: 16 \: - \frac{4x}{3}$
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Answer 1

Answer:

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Answer 2

Answer is in attachment

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