Problem 2021. Is this triangle right-angled?

Created by Tanya Morton

Solve Later

Given three positive numbers a, b, c, where c is the largest number, return true if the triangle with sides a, b and c is right-angled. Otherwise, return false.

Solve

Solution Stats

10467 Solutions
6375 Solvers

Last Solution submitted on Jan 21, 2026

Last 200 Solutions

Problem Comments

7 Comments

7 Comments

Show 4 older comments

Sreeram Mohan on 24 Nov 2014

This is a good problem to refresh basic geometry

Joseph on 28 Sep 2015

The checking should include a random Pythagorean triple (given random natural numbers a>b: a^2-b^2, 2ab, and a^2+b^2 form a Pythagorean triple). For the checking right now, a~=2 passes the tests.

Rachel Wedemeyer on 5 Apr 2018

Basic triangle math plus if statements. Great example

Othmane ELMOUATAMID on 9 Aug 2018

This reminds me the old good days ... basic geometry as Sreeram Mohan said :)

nguyen thai son son on 27 Sep 2019

Brain clearance

Nikita Kukhtin on 24 Jun 2022

great problem!

峡胜 on 13 Jun 2024

i think it is meaningful

Solution Comments

Show comments

Problem Recent Solvers6375

Problem Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Problem 2021. Is this triangle right-angled?

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers6375

Suggested Problems

More from this Author10

Problem Tags

Community Treasure Hunt

Problem 2021. Is this triangle right-angled?

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers6375

Suggested Problems

More from this Author10

Problem Tags

Community Treasure Hunt

Players