WorksheetsIntro - Ch 8 Opener #1
Total questions: 20
Worksheet time: 26mins
Name
Class
Date
1.
What is the reference angle for 275 degrees?
a)
85 degrees
b)
95 degrees
c)
-85 degrees
d)
-95 degrees
2.
What is the reference angle for 125 degrees?
a)
235 degrees
b)
125 degrees
c)
75 degrees
d)
55 degrees
3.
What is 5π/6 radians in degrees?
a)
180
b)
150
c)
360
d)
120
4.
What is 120 degrees in radians?
a)
2π/3
b)
π/3
c)
5π/3
d)
4π/3
5.
positive acute angle measuring the angle off of the x axis
a)
positive angle
b)
reference angle
c)
coterminal angle
d)
standard position
6.
angles sharing a terminal ray
a)
positive angles
b)
reference angle
c)
coterminal angles
d)
I don't know
7.
clockwise angle
a)
positive angle
b)
negative angle
c)
standard position
d)
arc length
8.
Find a coterminal angle to -27 degrees.
a)
-387
b)
27
c)
323
d)
-393
9.
Find the length s of the arc that subtends a central angle of measure 3 rad in a circle of radius 5 cm.
a)
9 cm
b)
15 cm
c)
25 cm
d)
20 cm
10.
Which of the following angles is coterminal with 25π?
a)
3π/4
b)
π
c)
-π/2
d)
3π/2
11.
Find the angle measure (in degrees) in the figure below.
a)
2°
b)
114.6°
c)
110°
d)
105.4°
12.
Find the radius r of the circle in the figure.
a)
1 unit
b)
2 units
c)
10 units
d)
4 units
13.
What is the length of y in this picture?
a)
45
b)
5√2
c)
90
d)
5
14.
What is the length of u and v in this 30-60-90 triangle?
a)
u = 8 v = 4√3
b)
u = 4√2 v = 8
c)
u = 16 v = 8
d)
u = 4√3 v = 8
15.
Find the value of y.
a)
9
b)
18√2
c)
9√2
d)
(9√2)/2
16.
How many radians does a circle have?
a)
360 degrees
b)
2pi radians
c)
pi radians
d)
2 radians
17.
Convert π/3 radians to degrees
a)
60⁰
b)
30⁰
c)
90⁰
d)
45⁰
18.
Convert π/4 radians to degrees
a)
90⁰
b)
45⁰
c)
60⁰
d)
30⁰
19.
Which of the following is closest to the measure of the angle shown?
a)
7/10 π
b)
3/8 π
c)
7/20 π
d)
3/2 π
20.
Which of the following is closest to the measure of the angle drawn by the green curve?
a)
5/6 π
b)
5/3 π
c)
4/5 π
d)
4/3 π
100 %
