Honors Trig./Pre-Calc: Sections 4.1 & 4.2 Quiz
360° = 2π radians
360° = ____________radians
ω = θ/t
Angular speed
cos = x
Cosine
s = r x θ
Formula for finding arc length
A = 1/2 x r² x θ
Formula for finding the area of a sector of a circle
csc = 1/y
cosecant
cot = x/y
cotangent
counterclockwise positive angle
counterclockwise --> ____________ angle
θ = s/r
formula for radian
V = r x ω
formula relating linear speed to angular speed
π/2
If two positive angles are complementary, their sum is ____
π
If two positive angles are supplementary, their sum is ______
V= s/t
Linear speed equation
π radians / 180°
To convert from degrees to radians, the conversion factor is __________________.
180° / π radians
To convert from radians to degrees, the conversion factor is __________________________.
arc length
What does S stand for?
clockwise negative angle
clockwise ---> ________________ angle
sec = 1/x
secant
sin = y
sine
tan = y/x
tangent