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OpenStudy (anonymous):
A right angled triangle has sides x, (x+7) and (2x+3) where (2x+3) is the hypotenuse. Use pythagoras' theorem to find the value of x and the lengths of the three sides.
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OpenStudy (anonymous):
after tons of algebra operations, u will get 2x^2-8x-40=0 and then u can use what u learnt u will get x=6.898979486 or -2.898979486(rej) because length cant be negative.
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