Why Does P=36 Work for a Perimeter of Pythagorean Triplet?

Hi everyone, I tried using known Pythagorean triplets like (3,4,5), (6,8,10), (5,12,13), etc., but none of them add up to 36. The answer key says P=36 is valid, but I don’t see how (Geometry Foundation Quiz #2)

Can someone explain why P=36 works or if there’s another way to find it?

Thanks in advance!

3(3,4,5) = (9,12,15)

9 + 12 + 15 = 36