Chapter 13 - Trigonometric Functions

Glencoe Mcgraw Hill Algebra

To write a radian measure in degrees, multiply the measure by- (and multiply the measure by the reciprocal when converting from degrees to radians) Coterminal angles- when two angles in standard position have the same terminal sides (add up to 360 degrees) ________ 2- Unit 5 Chapter 13- 3- Angles and Angle Measure Olivia Li Quadrantal angle- occurs when the terminal side of an angle lies on one of the axes.

Reference angle

________- an angle defined as the acute angle formed by the terminal side of the angle and the x- axis.

Glencoe Mcgraw

________- Hill Algebra 2- Unit 5 Chapter 13- 1- Right Triangle Trigonometry Olivia Li Trigonometry- the study of the relationships among the angles and sides of a right triangle.

Trigonometry

the study of the relationships among the angles and sides of a right triangle

Angle of elevation

the angle between a line parallel to the ground and a line of sight going up

Angle of depression

the angle between a line parallel to the ground an a line of sight going down

Unit circle

a circle of radius 1 unit whose center is at the origin of a coordinate plane

Radian

a measure for angles

Quadrantal angle

occurs when the terminal side of an angle lies on one of the axes

The Arcsine function

the inverse of the sine function