the hypotenuse of an isosceles right triangle is 9cm longer than either of is legs.find the EXACT length length of each side
Hi Darlene, I agree with your answer up to the roots that are different than the ones you present, please take a look at your three last steps.
L^{2} + L^{2} = (L+9)^{2}
2L^{2}=L^{2} + 18L + 81
L^{2} - 18L - 81 = 0
L1= 21.73 m
The other root is negative and the answer is not common sense.
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