# Assignment 1

### Unit 6 Checklist

## Define Words

Radians - The angle made by taking the radius and wrapping it along the edge of the circle.

Degrees - A measure for angles. (Ex. 360 degrees)

Initial side - The ray where measurement of an angle starts.

Terminal side - The ray where measurement of an angle stops.

Coterminal angle - Drawn in Standard position, share a terminal side.

Reference Angle - A acute version of that angle.

Unit Circle - A circle with a radius of one.

Tangent - A plane curve at a given point is the straight line that “just touches” the curve at that point.

Secant - A line that intersects two points on the curve.

Sine - The length of the opposite side divided by the length of the hypotenuse.

Cosine - The length of the adjacent side divided by the length of the hypotenuse.

Cosecant - The length of the hypotenuse divided by the length of the opposite side.

Cotangent - The length of the adjacent side divided by the length of the opposite side.