WorksheetsCircumference and Area of a Circle
Total questions: 18
Worksheet time: 1hrs 4mins
Name
Class
Date
1.
If my diameter is 19 inches, what is my radius?
a)
38 inches
b)
9.5 inches
c)
59.66 inches
d)
119.32 inches
2.
If my radius is 10ft, what is my diameter?
a)
20ft
b)
5ft
c)
31.4ft
d)
62.8ft
3.
what is the circumference of this circle ?
a)
3.14 cm
b)
37.68 cm
c)
24 cm
d)
68.4 cm
4.
Find the circumference of a circle with a radius of 12.5 mm .
a)
37.68mm
b)
18.84mm
c)
78.5mm
d)
none of the above
5.
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
6.
A cruise ship has a large, circular window. It has a diameter of 6 meters. What is the window's area?
a)
31.25 m2
b)
29.55 m2
c)
30.36 m2
d)
28.26 m2
7.
What is the area of this circle?
a)
163.2
b)
15.3
c)
124.2
d)
113.1
8.
Does this picture show the diameter or radius of a circle?
a)
Diameter
b)
Radius
9.
Is the red line a radius or diameter of the circle?
a)
Radius
b)
Diameter
10.
If you multiply ½ × d then you will get the...
a)
radius
b)
diameter
c)
circumference
d)
area
11.
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
12.
What is the distance around a circle?
a)
Circumference
b)
Area
c)
Diameter
d)
Radius
13.
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
14.
The diameter of a circle is 3 centimeters. What is the circumference?
a)
11.5cm2
b)
9.42 cm2
c)
unicorns are awsome
d)
45.3 cm2
15.
Alex has trained his puppy, Popper, to jump through a ring. According to Alex's measurements and calculations, the ring has a diameter of 3.5 feet. What is the ring's circumference (use 3.14 for pi)?
a)
11.32 ft
b)
12.25 ft
c)
10.99 ft
d)
8.75 ft
16.
What is the circumference? Round to the nearest whole number.
a)
48
b)
96
c)
24
d)
18
17.
A DVD has a diameter of 15 millimeters. What is the circumference?
a)
c = 15π
b)
C = 2π15
c)
c = 15/π
d)
c = 15/2π
18.
Which expression could be used to find the approximate circumference of this quilt piece?
a)
2π16
b)
2π8
c)
2(8)
d)
2(4)
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