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Radius and Diameter

Total questions: 25

Worksheet time: 16mins

Name
Class
Date
1.

The __________________ is the distance across a circle through its center.

a)

Circumference

b)

Radius

c)

Diameter

d)

Chord

2.

What is the radius of a circle when the diameter is 70 m?

a)

38

b)

35

c)

90

d)

140

3.

What is the diameter of a circle when the measure of its radius is 24 m?

a)

12

b)

32

c)

25

d)

48

4.
What is the diameter?
a)
8
b)
16
c)
10
d)
4
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.
What is the radius?
a)
18
b)
72
c)
38
d)
14
7.
Is the red line a radius or diameter of the circle?
a)
Radius
b)
Diameter
8.
Is the red line a radius or diameter of the circle?
a)
Radius
b)
Diameter
9.

Is this Radius or Diameter?

a)

Radius

b)

Diameter

10.

Is this radius or diameter?

a)

Radius

b)

Diameter

11.

Is this Radius or Diameter?

a)

Radius

b)

Diameter

12.

Is this Radius or Diameter?

a)

Radius

b)

Diameter

13.

What is the radius?

a)

44 ft

b)

88 ft

c)

22 ft

d)

Cannot be determined.

14.

What is the radius?

a)

11 in

b)

22 in

c)

44 in

d)

Cannot be determined.

15.

What is the radius?

a)

70 cm

b)

35 cm

c)

140 cm

d)

Cannot be determined.

16.

What is the diameter?

a)

40 ft

b)

80 ft

c)

20 ft

d)

Cannot be determined.

17.

What is the diameter?

a)

5 mm

b)

10 mm

c)

2.5 mm

d)

Cannot be determined.

18.

What is the Diameter?

a)

8 in

b)

16 in

c)

32 in

d)

Cannot be determined.

19.

What is the circle's diameter?

a)

6 ft

b)

12 ft

c)

24 ft

d)

Cannot be determined.

20.

What is the circle's radius?

a)

6 ft

b)

12 ft

c)

24 ft

d)

Cannot be determined.

21.

What is the circle's diameter?

a)

5 in

b)

10 in

c)

20 in

d)

Cannot be determined.

22.

What is the circle's radius?

a)

5 in

b)

10 in

c)

20 in

d)

Cannot be determined.

23.

What is the circle's diameter?

a)

3 m

b)

6 m

c)

12 m

d)

Cannot be determined.

24.

What is the circle's radius?

a)

3 m

b)

6 m

c)

12 m

d)

Cannot be determined.

25.

What is the circle's diameter?

a)

5 cm

b)

10 cm

c)

20 cm

d)

Cannot be determined.