Objective: I know how to use the Pythagorean theorem to determine whether a given triangle is a right triangle.

We can use the Pythagorean theorem to check whether a given triangle is a right triangle.

For a triangle with sides *a*, *b* and *c* and *c* is the longest side, if *c*^{2} = *a*^{2} + *b*^{2} then it is a right triangle.

Read the lesson on the Converse of the Pythagorean theorem for more information and examples.

Try the free Mathway calculator and
problem solver below to practice various math topics. Try the given examples, or type in your own
problem and check your answer with the step-by-step explanations.

We hope that the free math worksheets have been helpful. We encourage parents and teachers to select the topics according to the needs of the child. For more difficult questions, the child may be encouraged to work out the problem on a piece of paper before entering the solution. We hope that the kids will also love the fun stuff and puzzles.

We welcome your feedback, comments and questions about this site or page. Please submit your feedback or enquiries via our Feedback page.