SOLUTION: Are the following side lengths possible lengths for a right triangle 1;2;4 4;4;4 9;12;15

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Question 948015: Are the following side lengths possible lengths for a right triangle 1;2;4 4;4;4 9;12;15
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
If it's a right triangle, it follows the Pythagorean theorem,
A%5E2%2BB%5E2=C%5E2
Check all three.
I'll do the first.
1%5E2%2B2%5E2=4%5E2
1%2B4=16
5=16
False, so it's not a right triangle.
Now do the same for the remaining two.