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Worksheetscircles
Total questions: 15
Worksheet time: 30mins
Name
Class
Date
1.
What is the formula for circumference of a circle given the diameter?
a)
C = π r
b)
C = 2 π r
c)
C = π d
d)
C = 2 π d
2.
If the area of a circle is 25 π in² , then the diameter is?
a)
10 in
b)
5 in
c)
25 in
d)
pi in
3.
If the circumference of a circle is 22 π ft, what is the radius?
a)
22 ft
b)
11ft
c)
π ft
d)
no ft
4.
If the circumference of a circle is 22π , what is the diameter?
a)
22 ft
b)
11 ft
c)
π ft
d)
0 ft
5.
If the circumference of a circle is 44 π feet, what is the radius?
a)
22 ft
b)
44 ft
c)
33 feet
d)
3.14 feet
6.
The _____ is the distance from the center to any point on the circle.
a)
diameter
b)
radius
c)
π
d)
center
7.
The distance across a circle through its center is called the _____.
a)
diameter
b)
radius
c)
π
d)
center
8.
A _____ is half of a circle.
a)
circumference
b)
pi
c)
semicircle
d)
composite figure
9.
If you are given the diameter, how can you calculate the radius?
a)
Multiply the diameter by 2
b)
Divide the diameter by 2
c)
Add 2 to the diameter
d)
Subtract 2 from the diameter
10.
Which segment is the diameter?
a)
AC
b)
BD
c)
LM
d)
CE
11.
Which segment is a radius?
a)
LM
b)
DC
c)
BD
d)
ML
12.
If the area of circle is 100 π , find the radius of the circle.
a)
10 π
b)
10
c)
50
d)
50 π
13.
What is circumference?
a)
The distance around a circle.
b)
The space inside the circle.
c)
A line from side to side passing through the center.
d)
A line from the center to the side.
14.
What is the area of this circle?
a)
8322.13
b)
1134.11
c)
4536.46
d)
1267.09
15.
what is the area of this semicircle ?
a)
100.48cm2
b)
80cm2
c)
200.96cm2
d)
none of the above
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