# Shared Flashcard Set

## Details

trig
angle messures
14
Mathematics
05/01/2019

Term
 Positive & Negative Rotations
Definition
 A rotation is positive if the initial ray is rotated counter-clockwise. A rotation is negative if the initial ray is rotated clockwise.
Term
 Co-terminal Angles
Definition
 Any two angles drawn in standard form position that share a terminal ray
Term
 Reference Angles
Definition
 The positive acute angles formed by the terminal ray and the x-axis.
Term
 Standard position
Definition
 An angle is said to be drawn in standard position if its vertex is at the origin and its initial ray points along the positive x-axis.
Term
Definition
 The angle measure of the arc of a circle.
Term
Definition
 The distance from the center of a circle to the outer edge
Term
 Arc length
Definition
 The distance of a portion calculated by multiplying the central angle by the radius.
Term
 Conversion of a Degree to a Radian
Definition
 Multiply the number of degrees by n/180
Term
Definition
 Multiply the number of radians by 180o/π
Term
 Unit Circle
Definition
 The unit of a circle has a radius of 1.
Term
 Right Triangle
Definition
 They have a 90 degree angle.
Term
 Hypotenuse
Definition
 A long side of a right triangle.
Term
 Pythagorean Theorem
Definition
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