Coterminal angles
Degrees to radians
Arc Length Formula
The Unit Circle
Eval Trig Functions
100
What are coterminal angles?
When the terminal sides of two angles of different measure coincide.
100
What is the radian measure equivalent to 90∘.
pi/2
100
Find the arc length given the radius and angle in radians, round your answer to the nearest tenth:
(3pi)/4,r=10
s=thetar
23.6
100
The coordinates on the unit circle that correspond to the angle
pi
(-1,0)
100
find the
tan(theta)
1
200
Find a positive angle between 0∘ and 360∘ that is coterminal with an angle of 400∘
40∘ or 760∘ or anything where you add multiples of 360 to 400
200
What is the radian measure equivalent to 210∘.
(7pi)/6
200
Find the arc length given the radius and angle in radians, round your answer to the nearest tenth:
(5pi)/3,r=54
s=thetar
282.7
200
What are the coordinates of
cos((3pi)/2)
(0,-1)
200
Find the
tan(theta)
-8/15
300
Find a negative angle between −360∘ and 0∘ that is coterminal with an angle of 100∘
-260∘ or keep subtracting 360 from 100
300
The degree measure equivalent to
(5pi)/4 radians
225 degrees
300
In the arc length formula, what does theta have to be in?
RADIANS not degrees, if it's in degrees you have to convert it to radians
300
The angle, in radians between 0 and
2 pi
where the
sintheta=-sqrt(3)/2 and costheta=1/2
theta=(5pi)/3
300
Find the
cos(theta)
-15/17
400
A positive angle between 0 and
2pi
that is coterminal with an angle of
(3pi)/(4
(11pi)/4
(3pi)/4 + 2pi
(3pi)/4 + (8pi)/4=(11pi)/4
400
What is the formula used to convert a degree measure θ∘ to its radian equivalent.
pi/180
400
Find the arc length given the radius and angle in degrees:
theta=180,r=1
s=thetar
pi
400
What angle has a value of
tan((5pi)/4)
225
400
Find the
sin(theta)
8/17
500
A negative angle between −2π and 0 that is coterminal with an angle of
-pi/3
(-7pi)/3
500
The degree measure equivalent to 3pi radians.
540
500
Find the arc length given the radius and angle in degrees, round your answer to the nearest tenth:
theta=120,r=3
s=thetar
6.3
500
What is the angle, in degrees between 0∘ and 360∘, where
sin(theta)=sqrt(2)/2
and
tan(theta)=-1
135 degrees
500
Find the 
sin(theta) and cos(theta)
sin(theta)=-sqrt(2)/2,cos(theta)=-sqrt(2)/2