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WorksheetsUnit Circle Review
Total questions: 18
Worksheet time: 14mins
Name
Class
Date
1.
sin 7π/6
a)
1/2
b)
-1/2
c)
√3/2
d)
-√3/2
2.
What quadrant is -2π/3 in?
a)
I
b)
II
c)
III
d)
IV
3.
tanθ 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
4.
sin (π/2)
a)
√3/2
b)
√2/2
c)
1/2
d)
1
5.
cos (π/4)
a)
√3/2
b)
√2/2
c)
1/2
d)
1
6.
cos(π)
a)
√3/2
b)
-√2/2
c)
-1
d)
1
7.
cos 0
a)
0
b)
-1
c)
1
d)
und
8.
tan 0
a)
0
b)
1
c)
-1
d)
und
9.
Convert 150⁰ to radians
a)
5π/6
b)
3π/4
c)
7π/6
d)
2π/3
10.
What is 7π/4 radians in degrees?
a)
300
b)
135
c)
315
d)
45
11.
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)
12.
tan 180o
a)
0
b)
1
c)
-1
d)
und
13.
tan 90o
a)
0
b)
1
c)
-1
d)
und
14.
sin 180o
a)
0
b)
1
c)
-1
d)
und
15.
sin 90o
a)
0
b)
1
c)
und
d)
-1
16.
What is cos 60°?
a)
½
b)
√3/2
c)
√2/2
d)
1
17.
What is sin 45°?
a)
1
b)
√3/2
c)
½
d)
√2/2
18.
What is sin 30°?
a)
√3/2
b)
1
c)
½
d)
√2/2
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