Trigonometry Vocab

Front

Trigonometry:

Back

Study of sides and angles of triangles.

Front

Terminal side of an angle?

Back

The point where the angle stops after its rotation.

Front

Initial side of an angle?

Back

The beginning side of an angle.

Front

Angle in standard form starts at:

Back

Quadrant I, x-axis

Front

Direction of a positive angle?

Back

Clockwise

Front

Direction of a negative angle:

Back

Counterclockwise

Front

Degrees in a circle?

Back

360

Front

Radian definition

Back

A portion of a circle with a circumference equal to the radius.

Front

Convert radians to degrees:

Back

Multiply by 180 / π

Front

Convert degrees to radians:

Back

Multiply by π / 180