A triangle with one 90-degree angle is called what?

A triangle in which one angle is a right angle i.e. 90 degree, often called right triangle, vintage line drawing or engraving illustration Stock Vector Image & Art - Alamy

How to Calculate the Sides and Angles of Triangles Using Pythagoras' Theorem, Sine and Cosine Rule - Owlcation

Hypotenuse, opposite, and adjacent (article)

30 60 90 Triangle Calculator - Inch Calculator

A 90 degree angle triangle has one side a length of 26.1 meters, how to you find the lengths of the other sides?

Different Types of Triangles: A Vocabulary Guide for English Learners - ESLBUZZ

Right Angle - Definition, Properties, Shape, Examples

trigonometry - Calculate height of triangle given angle and base - Mathematics Stack Exchange

The 90 degree triangle: Definition and characteristics

Right Angled Triangle - Formula, Properties

What is a quadrilateral with one right angle?

3 Ways to Find the Third Angle of a Triangle - wikiHow

5 Ways to Find the Length of the Hypotenuse - wikiHow