click below
click below
Normal Size Small Size show me how
PreCal Exam 1
Question | Answer |
---|---|
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 |