WorksheetsCircle- parts, circumference, and area
Total questions: 18
Worksheet time: 35mins
Name
Class
Date
1.
What is the distance around a circle?
a)
Circumference
b)
Area
c)
Diameter
d)
Radius
2.
Is the red line a radius or diameter of the circle?
a)
Radius
b)
Diameter
3.
Is the red line a radius or diameter of the circle?
a)
Radius
b)
Diameter
4.
What is π ? (Best Choice)
a)
The ratio of the circumference of any circle to its diameter.
b)
Exactly 3.14
c)
Exactly 3.1415
d)
Exactly 3.141593
5.
what is the circumference of this circle ?
a)
3.14 cm
b)
37.68 cm
c)
24 cm
d)
68.4 cm
6.
If my radius is 10ft, what is my diameter?
a)
20ft
b)
5ft
c)
31.4ft
d)
62.8ft
7.
What is the diameter of this circle?
a)
3.5
b)
3
c)
5
d)
7
8.
A Circle has a radius of 4. What is the area of the circle? (Best Choice) (note: units are squared)
a)
4π or about 12.56
b)
16π or about 50.24
c)
2π or about 6.28
d)
8π or about 25.12
9.
A Circle has a diameter of 10 centimeters. What is the area of the circle? (Best Choice)
a)
5π or about 15.7 cm2
b)
10π or about 31.4 cm2
c)
25π or about 78.5 cm2
d)
100π or about 314 cm2
10.
What is the diameter?
a)
8
b)
16
c)
10
d)
4
11.
A bicycle tire has a diameter of 27 inches. What is the radius?
a)
27π
b)
13.5
c)
81
d)
25π
12.
If my radius is 10ft, what is my diameter?
a)
20ft
b)
5ft
c)
31.4ft
d)
62.8ft
13.
The diameter of a circle is:
a)
The measurement around the circle.
b)
The distance from an edge of a circle to another edge.
c)
The distance from the center of the circle to an edge of a circle
d)
The distance from an edge of a circle to another edge through the center.
14.
The circumference of a circle is
a)
The measurement from an edge of a circle to another edge.
b)
The measurement around the circle
c)
The measurement from an edge of a circle to another edge going through the center
d)
The measurement from the center of the circle to an edge of the circle
15.
The radius of a circle is
a)
The measurement from the center of a circle to an edge of the circle.
b)
The measurement around the circle
c)
The measurement from and edge of the circle to another edge through the center
d)
A line perpendicular to the diameter of the circle
16.
What formula is this used for:
πd
πd
a)
Area
b)
Circumference
c)
Surface Area
d)
Volume
17.
Other than the formula C=πd what is another formula for circumference of a circle?
a)
C=2π
b)
C=2πr
c)
C=πr²
d)
C=πd²
18.
Meg swam from one side of her circular pool to the other side going through the center. If Meg swam 8 feet, what is the approximate circumference of Meg's pool?
a)
16 feet
b)
25.12 feet
c)
251.2 feet
d)
4 feet
100 %
