# Circumference of a circle

## Quiz by DAVID VEGA

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20 questions
• Q1
Find the circumference of the circle: r = 8cm
24
18
96
50.24
120s
• Q2
Find the circumference of the circle: d = 36 ft
12.56
113.04
36
56.52
120s
• Q3
Find the radius of the circle: d = 36 ft
14
18
72
38
120s
• Q4
Find the diameter of the circle: r = 8 cm
8
10
4
16
120s
• Q5
What does "circumference" mean?
line from one side of a circle to another
space a circle takes up
line from center of circle to side
distance around a circle
120s
• Q6
Find the circumference (to the nearest whole number)
116 square in.
44 in
88 in
none of the above
120s
• Q7
What is the circumference of a circle with a diameter of 1 inch? Use 3.14 for pi.
6.28 inches
31.4 inches
3.14 inches
62.8 inches
120s
• Q8
How much does pi stand for?
4.31
1.34
3.14
3.41
120s
• Q9
What is the circumference of this circle?
68.4 cm
3.14 cm
37.68 cm
24 cm
120s
• Q10
A bicycle tie has a diameter of 27 inches. What is the circumference of the tire?
42.39
27.18
84.78
13
120s
• Q11
31.4 in.
15.7 in.
10 in.
2.5 in.
120s
• Q12
What is the circumference of the circle? r = 22 in. d = 44 in.
2.5 in.
138.16 in.
125.23 in.
222 in.
120s
• Q13
The radius of the circle is 9 meters. What is the circle's circumference?
9 meters
56.52 meters
18 meters
28.26 meters
120s
• Q14
Does this picture show the diameter or radius of a circle?