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February 15th, 2015, 08:12 AM   #1
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Post using pythagoras theorem

PQRS is a rectangle in which PQ=10 cm and PS=6 cm. T is a point on PQ such that RST is an isosceles triangle whose equal sides are RS and ST.Find RT.
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February 15th, 2015, 08:52 AM   #2
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ST² - PS² = 64 hence TQ = 2. TQ² + QR² = 40 hence RT = 2√(10).
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