Is It a Right Triangle?

Want to test if a triangle is truly right-angled? This playsheet lets you use the Pythagorean Theorem to check whether three side lengths form a right triangle.

You’ll apply the formula a2+b2=c2a^2 + b^2 = c^2a2+b2=c2 and decide if the relationship holds true.

Each problem strengthens your reasoning and shows how numbers and shapes work together.