Almost right-angled triangles II

Problem 224

Published on 26 December 2008 at 05:00 pm [Server Time]

Let us call an integer sided triangle with sides a ≤ b ≤ c barely obtuse if the sides satisfy
a2 + b2 = c2 - 1.

How many barely obtuse triangles are there with perimeter ≤ 75,000,000?

Confirmation Code:
Go to back to Problems