SOLUTION: do 3in , 4in , and 5in make a right triangle?

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Question 945968: do 3in , 4in , and 5in make a right triangle?
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

to determine if sides of length 3in , 4in , and 5in make a right triangle, use Pythagorean theorem:

as soon as I see the sides length, I say the answer is yes, because it is a Pythagorean triple or triad (called "the 3-4-5 triangle")
check:
let 3in be side a
4in side b
and 5in side c
then c%5E2=a%5E2%2Bb%5E2
%285in%29%5E2=%283in%29%5E2%2B%284in%29%5E2
25in%5E2=9in%5E2%2B16in%5E2
25in%5E2=25in%5E2=> so, 3in , 4in , and 5in does make a right triangle