Free Printable Circle Basics

1.

What is the radius of a circle if its diameter is 10 cm?

a)

20 cm

b)

5 cm

c)

10 cm

d)

2.5 cm

2.

If the radius of a circle is 8 cm, what is its diameter?

a)

4 cm

b)

16 cm

c)

8 cm

d)

12 cm

3.

Calculate the circumference of a circle with a radius of 7 cm. Use $\pi \approx 3.14$ .

a)

43.96 cm

b)

21.98 cm

c)

14 cm

d)

28 cm

4.

What is the area of a circle with a diameter of 14 cm? Use $\pi \approx 3.14$ .

a)

123.16 cm $^2$

b)

153.86 cm $^2$

c)

154 cm $^2$

d)

246.32 cm $^2$

5.

The circumference of a circle is 62.8 cm. What is the radius? Use $\pi \approx 3.14$ .

a)

10 cm

b)

20 cm

c)

5 cm

d)

15 cm

6.

If the area of a circle is 78.5 cm $^2$ , what is the radius? Use $\pi \approx 3.14$ .

a)

5 cm

b)

10 cm

c)

2.5 cm

d)

7.5 cm

7.

What is the diameter of a circle whose circumference is approximately 31.4 cm? Use $\pi \approx 3.14$ .

a)

5 cm

b)

10 cm

c)

15 cm

d)

20 cm

8.

Calculate the area of a circle with a radius of 3 cm. Use $\pi \approx 3.14$ .

a)

28.26 cm $^2$

b)

9.42 cm $^2$

c)

18.84 cm $^2$

d)

14.13 cm $^2$

9.

A circle has a diameter of 22 cm. What is its radius?

a)

44 cm

b)

11 cm

c)

22 cm

d)

5.5 cm

10.

What is the circumference of a circle with a diameter of 20 cm? Use $\pi \approx 3.14$ .

a)

62.8 cm

b)

31.4 cm

c)

10 cm

d)

20 cm

Circle Basics

Total questions: 10

Worksheet time: 5mins

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