Which of the following could not be the lengths of the sides of a right angled triangle? Choose the correct choice from the following answers:
A) 3, 4, 5
B) 5, 12, 13
C) 8, 15, 17
D) 12, 15, 18
E) 9, 12, 15
A. 5^2 = 3^2+ 4^2   B. 13^2 = 12^2+ 5^2   C. 17^2 = 15^2 + 8^2   D. 18^2 not = 12^2 + 15^2   E. 15^2 = 12^21 + 9^2   Hence answer will be (12, 15, 18)
<result>D</result>
Which of the following could not be the lengths of the sides of a right angled triangle?