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PreCal Exam 1

QuestionAnswer
arclength/radius radian measure of a central angle
a/r theta
180/pi 1 radian
pi/180 1 degree
radius*radian angle arclength
1/2 r^2(theta) A(Area of a sector)
radians/time angular velocity
distance/time linear speed
circumference/time linear velocity
2rpi Circumference
r^2pi area of a circle
circumference*rotations+(additional time)(angular speed)(radius) linear velocity(common)
(additional time)(angular speed)(radius) additional time
360 or 2pi(revolution) angular velocity(common)
+ or- 2pi or 360 degrees coterminal
angle closest to x and is positive reference angle
Created by: princessnatalie
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