Which of the following is not a Pythagorean triple?

A.
28, 45, 53
B.
16, 63, 65
C.
13, 84, 85
D.
11, 61, 62

Question

Which of the following is not a Pythagorean triple?

A.
28, 45, 53
B.
16, 63, 65
C.
13, 84, 85
D.
11, 61, 62

anonymous · Answer

@TheYankee

theyankee · Answer

Do you know how to work with square roots?

anonymous · Answer

dont have a calculator on me

theyankee · Answer

Okay, what you are going to do is plug each number into the  a^2+b^2=c^2 equation and see what checks out.  Give me a second and I'll help you out a little more.

theyankee · Answer

So, when you plug every equation into the calculator, you'll find that the only one that doesn't check out evenly is option d. The square of C is NOT equal to the squares of a and B, making it not suitable to be a pythagorean triple.