WorksheetsCircumference of a Circle
Total questions: 15
Worksheet time: 48mins
Name
Class
Date
1.
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
2.
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
3.
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
4.
What is the formula for finding the circumstance of a circle with just the diameter?
a)
π*d
b)
b*h
c)
l*w*h
d)
I do not know
5.
A DVD has a diameter of 15 millimeters. Which equation would help you determine the circumference?
a)
c = 15π
b)
C = 2π15
c)
c = 15 ÷ π
d)
c = 15 π
6.
Find the circumference, rounding your answer to 1d.p.
a)
78.5cm
b)
39.2cm
c)
39.3cm
d)
490.9cm
7.
Find the circumference, rounding your answer to 1d.p.
a)
9.4mm
b)
18.8cm
c)
18.8mm
d)
4.7mm
8.
If my radius is 10ft, what is my diameter?
a)
20ft
b)
5ft
c)
31.4ft
d)
62.8ft
9.
Steven purchases a bowl. The diameter of the
bowl is 14 cm. What is the circumference of the
bowl?
a)
28 cm
b)
43.96 cm
c)
87.96 cm
d)
7 cm
10.
Daniel wants to buy cookies for her friend. The
radius of a cookie is 5 inches. What is the cookie’s
circumference?
radius of a cookie is 5 inches. What is the cookie’s
circumference?
a)
10 in
b)
2.5 in
c)
15.7 in
d)
31.4 in
11.
Determine the radius of the penny
a)
59.66 mm
b)
9.5 mm
c)
38 mm
d)
119.32 mm
12.
What two formulas can you use to find the circumference?
a)
C = π·d
b)
C = π·r2
c)
C = 2·π·r
d)
C = d2
13.
What does d represent in the formula:
C = π·d
a)
diameter
b)
radius
c)
pi
d)
3.14
14.
What number represents π?
a)
31.4
b)
4.13
c)
3.14
d)
34.1
15.
Find the circumference of the circle.
a)
14.13 cm
b)
63.56 cm
c)
28.26 cm
d)
127.17 cm
100 %
