Course 3 Unit 2 Vocabulary

A formula used to find the distance between two points on the coordinate plane.

• distance formula

• midpoint formula

• slope formula

• quadratic formula

The side opposite the right angle in a right triangle.

• hypotenuse

• adjacent

• perpendicular

• median

The two sides of a right triangle that form the right angle.

• legs

• hypotenuse

• altitude

• median

In a right triangle, the sum of the squares of the lengths of the legs is equal to the square of the length of the hypotenuse.

• Pythagorean Theorem

• Triangle Inequality Theorem

• 180 degrees

• Linear Equation

A set of three positive integers (a, b, c) where a² + b² = c².

• Pythagorean triple

• linear equation

• Right Triangle

• Solution Set

A number that has an whole number as a square root.

• perfect square

• irrational number

• any integer

• rational numbers