A right triangle is a fundamental geometric shape defined by one of its angles being a right angle, which measures 90 degrees.
The other two angles in a right triangle are acute angles, meaning they are less than 90 degrees.
The side opposite the right angle is called the hypotenuse and is typically the longest side, while the other two sides are called the legs.
Right triangles have special mathematical properties and are used in various applications, including trigonometry, geometry, and engineering, making them a crucial concept in mathematics.