Y2CH5 Radians Flashcards
1
Q
1 radian =
A
180/ pi
2
Q
How do you convert 360 into radians
A
360 * pi/180
3
Q
Equation of arc length
A
L = r * theta
4
Q
Area of sector
A
A = 1/2 r^2 * theta
5
Q
Area of segment
A
Area of sector - area of triangle
1/2 r^2 theta - 1/2 r^2 sin
6
Q
Small angle approximations of
cos4x
A
1 - ((4x)^2/2)
7
Q
A