Precalculus Angles, Coterminal Angles, Radians, and Degrees

A set of vocabulary flashcards covering the fundamental concepts of angles, their various measures, and positioning on the coordinate plane based on Precalculus worksheet topics.

Coterminal Angles

Angles that share the same terminal side.

Standard Position

An angle where the vertex is at the origin and the initial side is along the positive x-axis.

Positive Coterminal Angle

A coterminal angle formed by moving in a counter-clockwise direction.

Negative Coterminal Angle

A coterminal angle formed by moving in a clockwise direction.

Converting Degrees to Radians

The process of multiplying a degree measure by $\frac{\pi}{180}$.

Converting Radians to Degrees

The process of multiplying a radian measure by $\frac{180}{\pi}$.

Terminal Side

The side indicating where the rotation of an angle ends.

Quadrant

One of the four sections of the coordinate plane where the terminal side of an angle lies.

Coterminal Range for Degrees

The common practice of finding an angle coterminal to a given angle that lies between $0^\circ$ and $360^\circ$.

Coterminal Range for Radians

The common practice of finding an angle coterminal to a given angle that lies between $0$ and $2\pi$.