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Worksheets

Radius Diameter Circumference

Total questions: 19

Worksheet time: 19mins

Name
Class
Date
1.

What part of the circle is that?

a)

Circumference

b)

Radius

c)

Diameter

d)

centre

2.

Find the circumference of this semicircle. 

(Take  227\frac{22}{7}  ) 

a)

11 cm

b)

22 cm

c)

33 cm

d)

44 cm

3.

The diameter of a circular plate is 21 cm. Find its circumference. [Take π=227\pi=\frac{22}{7}  ]

a)

55 cm

b)

56 cm

c)

65 cm

d)

66 cm

4.

Find the area of the circle. [Take  π=3.14\pi=3.14  ]

a)

76.5 cm

b)

77.5 cm

c)

78.5 cm

d)

79.5 cm

5.

Pi is the ratio of a circle's ​ (a)   to its ​ .

Choose from the below words

circumference

diameter

radius

center

height

weight

length

grade point average

6.

What is the circumference of a circle with a diameter of 10 cm? Use π3.14\pi \approx 3.14 .

a)

31.4 cm

b)

62.8 cm

c)

15.7 cm

d)

28.26 cm

7.

The distance from a point on the surface of a circle that passes through the center to the other side of the circle is (a)  

Choose from the below words

diameter

radius

volume

cone

cylinder

sphere

8.

Pi is the ratio of a circle's ​ (a)   to its ​ (b)   .

Choose from the below words

circumference

diameter

radius

center

height

weight

length

grade point average

9.

What is the circumference of a circle with a radius of 7 cm? (Use π3.14\pi \approx 3.14 )

a)

21.98 cm

b)

43.96 cm

c)

44 cm

d)

88 cm

10.

What is the radius measurement? ​ (a)  

Choose from the below words

6 cm

12 cm 

24 cm

11.

Pi is the ​ (a)   of a circle's ​ (b)   to it's ​ (c)  

Choose from the below words

ratio

circumference

diameter

version

radius

chord

area

Pi

Π\Pi

12.

What part of the circle is that?

a)

Circumference

b)

Radius

c)

Diameter

d)

Centre

13.

What is the circle's diameter?

a)

5 cm

b)

10 cm

c)

20 cm

14.

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

15.

The diameter of this wheel is 32 in, how long is the radius?

a)

64 in

b)

18 in

c)

16 in

d)

8 iin

16.

What is the circumference of a circle with a radius of 21 cm?

a)

131.88 cm

b)

121.99 cm

c)

111.89 cm

d)

141.89 cm

17.

What is the circumference of a circle with a diameter of 56 m?

a)

175.8 m

b)

176.8 m

c)

165.8 m

d)

186.8 m

18.

What is the formula for finding the circumference of a circle?

a)

C = r2

b)

C = rd

c)

A = π·r2

d)

C = π·d

19.

Find the circumference of the circle.

a)

31.4 cm

b)

78.5 cm

c)

314 cm

d)

15.7 cm