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WorksheetsUnit Circle Period 1
Total questions: 17
Worksheet time: 37mins
Name
Class
Date
1.
cos(30o)
a)
- ½
b)
√3/2
c)
2√3 /3
d)
½
2.
Choose the best match for the graph.
a)
30o
b)
45o
c)
60o
d)
90o
3.
Choose the best match for the graph.
a)
30o
b)
45o
c)
60o
d)
90o
4.
Choose the best match for the graph.
a)
30o
b)
45o
c)
60o
d)
90o
5.
Choose the best match for the graph.
a)
45o
b)
90o
c)
135o
d)
180o
6.
What is the angle measure, in degrees, at the red marking on the unit circle?
a)
30°
b)
45°
c)
60°
d)
90°
7.
Based on the unit circle, what is the value of sin?
a)
y
b)
x
c)
x/y
d)
y/x
8.
Based on the unit circle, what is the value of cos?
a)
y
b)
x
c)
x/y
d)
y/x
9.
Based on the unit circle, what is the value of tan?
a)
y/r
b)
x/r
c)
r/y
d)
y/x
10.
What is cos 60°?
a)
½
b)
√3/2
c)
√2/2
d)
1
11.
What is sin 45°?
a)
1
b)
√3/2
c)
½
d)
√2/2
12.
What is cos 90°?
a)
½
b)
undefined
c)
1
d)
0
13.
What is tan 45°?
a)
1
b)
√2/2
c)
√3/2
d)
½
14.
What is the radius of a unit circle?
a)
1
b)
2
c)
1/2
d)
0
15.
Based on the unit circle, what is the value of cos?
a)
y
b)
x
c)
x/y
d)
y/x
16.
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
17.
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
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