c² = a² + b²
Area = (a × b) / 2
P = a + b + c
In a right triangle the square of the hypotenuse equals the sum of the squares of the other two sides.
Right triangles are used in engineering, architecture, navigation, construction and physics.
A right triangle is a triangle with one angle equal to 90 degrees.
Use the Pythagorean theorem: c = √(a² + b²).