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Worksheetsunit circle
Total questions: 20
Worksheet time: 40mins
Name
Class
Date
1.
What are the coordinates of 60° on the unit circle?
a)
(0, 1)
b)
(1/2, √3/2)
c)
(√3/2, 1/2)
d)
(√2/2, 1/2)
2.
cos(60°)
a)
0
b)
1/2
c)
√3/2
d)
1
3.
cos 150o
a)
-1/2
b)
1/2
c)
√3/2
d)
-√3/2
4.
sin 7π/6
a)
1/2
b)
-1/2
c)
√3/2
d)
-√3/2
5.
What is the radius of a unit circle?
a)
1
b)
2
c)
1/2
d)
0
6.
What is the exact value of sin 150°
a)
-1/2
b)
-√3/2
c)
1/2
d)
√3/2
7.
What is sin 45°?
a)
1
b)
√3/2
c)
½
d)
√2/2
8.
What is cos 90°?
a)
½
b)
undefined
c)
1
d)
0
9.
What is tan 45°?
a)
1
b)
√2/2
c)
√3/2
d)
½
10.
cos (π/4)
a)
√3/2
b)
√2/2
c)
1/2
d)
1
11.
cos(π)=
a)
0
b)
1
c)
-1
d)
1/2
12.
sin 2π/3
a)
1/2
b)
-1/2
c)
√3/2
d)
-√3/2
13.
What is the exact coordinates of 3π/4 on the unit circle?
a)
(−√2∕2, √2∕2)
b)
(−√2∕2, −√2∕2)
c)
(−√3∕2, −√2∕2)
d)
(√2∕2, −√2∕2)
14.
cos 4π/3
a)
-√3/2
b)
√3/2
c)
1/2
d)
-1/2
15.
cos 5π/6
a)
-1/2
b)
1/2
c)
√3/2
d)
-√3/2
16.
sin π/4
a)
√2∕2
b)
1/2
c)
√3/2
d)
0
17.
What is cos 30°?
a)
√3/2
b)
½
c)
√2/2
d)
1
18.
cosθ is positive in
a)
the 1st and 2nd quadrants
b)
the 1st and 3rd quadrants
c)
the 1st and 4th quadrants
d)
the 2nd and 3rd quadrants
19.
sinθ is positive in
a)
the 1st and 2nd quadrants
b)
the 1st and 3rd quadrants
c)
the 1st and 4th quadrants
d)
the 2nd and 3rd quadrants
20.
On a point in the unit circle (x,y) the x value is the
a)
cosine
b)
tan
c)
sine
d)
tangent
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