# Shared Flashcard Set

## Details

trigonometry angle terminology
angle measures
17
Mathematics
05/01/2019

Term
 standard position
Definition
 ℘ an angle is in standard position if its initial ray is on the x-axis ℘    [image]
Term
 positive / negative rotation
Definition
 ℘ a rotation is positive if the initial ray is rotated counter-clockwise. a negative if the initial ray is rotated clockwise ℘[image]
Term
 co-terminal angles
Definition
 ℘ any two angles drawn in standard position that share a terminal ray ℘[image]
Term
 reference angles
Definition
 ℘ the positive acute angle formed by the terminal ray and x-axis ℘[image]
Term
Definition
 ℘ the measure of the arc of a circle ℘[image]
Term
Definition
 ℘ the distance from the center of the circle to the edge ℘
Term
 arc length
Definition
 ℘ the distance of a portion of a circle calculated by multiplying the central angle by the radius ℘ [image]
Term
 conversion of a degrees to a radian
Definition
 ℘ multiply the number  of degrees by π/180o ℘[image]
Term
 conversion of a radian to degrees
Definition
 ℘ multiply the number of radians by 180/π ℘[image]
Term
 unit circle
Definition
Term
 right triangle
Definition
 the area of the square whose side is the hypotenuse  [image]
Term
 hypotenuse
Definition
 the longest side of a right triangle [image]
Term
 pythagorean therem
Definition
 the hypotenuse of a right triangle is equal to the sum of the squares of the squares of the other two sides [image]
Term
 period:π
Definition
 the length of one cycle of a curve[image]
Term
 frequency:2
Definition
 the number of cycles it repeats in a given interval [image]
Term
 amplitude:1
Definition
 represents half the distance between the maximum and minimum values of the function [image]
Term
 midline:y=a
Definition
 a line that runs between the maximum and minimum y-values of the function [image]
Supporting users have an ad free experience!