SOLUTION: A rectangle the diagonal line 15. the smaller side of the triangle is x and the bigger side is 2x. Find the value of x

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Question 1017818: A rectangle the diagonal line 15. the smaller side of the triangle is x and the bigger side is 2x. Find the value of x
Answer by ikleyn(52780) About Me  (Show Source):
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A rectangle the diagonal line 15. the smaller side of the triangle is x and the bigger side is 2x. Find the value of x
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x%5E2 + %282x%29%5E2 = 15%5E2;

x%5E2+%2B+4x%5E2 = 225,

5x%5E2 = 225,

x%5E2 = 225%2F5 = 45,

x = +/- sqrt%2845%29 = +/- 3%2Asqrt%285%29.