SOLUTION: if the hypotenuse of a right triangle is 30 cm long and one leg is twice as long as the other, how long are the legs of the triangle?

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Question 255341: if the hypotenuse of a right triangle is 30 cm long and one leg is twice as long as the other, how long are the legs of the triangle?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
30^2=a^2+(2a)^2
900=a^2+4a^2
900=5a^2
180=a^2
6sqrt%285%29=a
a=13.4164 cm