Vocab Group 5: Right Triangles

Front

Hypotenuse of a Right Triangle

Back

The side of a right triangle opposite the right angle; always the longest side.

Front

Leg of a Right Triangle

Back

One of the two sides of the right triangle that form the right angle.

Front

Pythagorean theorem

Back

a²+b²=c²

Front

Pythagorean triples

Back

A set of three positive integers that satisfy the Pythagorean theorem (e.g., 3, 4, 5).

Front

Trigonometry

Back

The branch of mathematics dealing with the relations of the sides and angles of triangles and with the relevant functions of any angles.

Front

Angle of elevation

Back

The angle formed by a horizontal line and the line of sight to an object above the horizontal line.

Front

Angle of depression

Back

The angle between the line of sight and the horizontal when an observer looks downward.

Front

Included angle

Back

An angle created by two adjacent sides.

Front

Included side

Back

The side between two angles.