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WorksheetsCircumference & Area of Circles
Total questions: 10
Worksheet time: 30mins
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.
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
5.
Does this picture show the diameter or radius of a circle?
a)
Diameter
b)
Radius
6.
If you multiply ½ × d then you will get the...
a)
radius
b)
diameter
c)
circumference
d)
area
7.
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
8.
A DVD has a diameter of 15 millimeters. Which equation would help you determine the area?
a)
A = 152π
b)
A = 2π15
c)
A = 7.52π
d)
A = 15 π
9.
A circle has a radius of 5 cm. What is the area?
a)
78.5 cm2
b)
31.4 cm2
c)
15.7 cm2
d)
314 cm2
10.
Mrs. Wilson placed the welcome mat shown below on her front door step. What is the area of her welcome mat in square feet? Leave in terms of π.
a)
A = 2π
b)
A = 8π
c)
A = 10π
d)
A = 4π
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