SOLUTION: Which of the following could not represent the lengths in cm of the three sides of a right triangle? A: a = 20, b = 21, c = 29 Strike Reset B: a = 10, b = 24, c = 30

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Question 1160300: Which of the following could not represent the lengths in cm of the three sides of a right triangle?
A: a = 20, b = 21, c = 29 Strike Reset
B: a = 10, b = 24, c = 30 Strike Reset
C: a = 7, b = 24, c = 25 Strike Reset
D: a = 3, b = 4, c = 5

Answer by Theo(13342) About Me  (Show Source):
You can put this solution on YOUR website!
i think C.
in a right triangle, a^2 + b^2 = c^2
therefore c = sqrt(a^2 + b^2).
in A, C, D that is true.
in B, that is not true.
in B, sqrt(10^2 + 24^2) = 26, not 30.
selection B is your answer.