Free Printable Circles: Area and Circumference, Auto-Gen

Worksheets

Circles: Area and Circumference, Auto-Gen

Total questions: 15

Worksheet time: 4hrs 45mins

Name

Class

Date

Which of the following is the formula for the CIRCUMFERENCE of a circle? (Select all that apply)

$2\pi r$

$\pi d$

$2\pi r^2$

$\pi r^2$

What is the area of this circle?

Use $\pi$ for pi.

8322.13

1134.11

4536.46

1267.09

Find the exact area of the semicircle.

32 π cm²

64 π cm²

16 π cm²

8 π cm²

What is the area of this circle?

Use 3.14 for pi

82.13 m²

78.50 m²

314.16 m²

170.12 m²

Find the area of the figure.

Use 3.14 for pi

$200.96\ cm^2$

$50.24\ cm^2$

$25.12\ cm^2$

$100.48\ cm^2$

Is the red line a radius or diameter of the circle?

Radius

Diameter

Find the perimeter of the semicircle.

Use 3.14 for pi

12.86cm

20.56cm

25.12cm

50.24cm

Alex has trained his puppy, Popper, to jump through a ring. According to Alex's measurements and calculations, the ring has a diameter of 3.5 feet. What is the ring's circumference (use 3.14 for pi)?

11.32 ft

12.25 ft

10.99 ft

8.75 ft

The area of this circle is 78.5 units².

What is the radius? (use 3.14 for pi)

12.5

10.

What is the diameter of this circle?

3.5

6.5

11.

What is the area of this semicircle? d = 8 cm

Use 3.14 for pi

100.48 cm²

50.24 cm²

200.96 cm²

25.12 cm²

12.

Find the circumference of the circle.

Use 3.14 for pi

21.98

153.86

43.96

615.44

13.

The circumference of this circle is 113.04 m.

What is the radius? (Use 3.14 for pi)

14.

Find the circumference (to the nearest whole number)

88 in

44 in

116 square in

None of the above

15.

How many times would this wheel need to revolve to go 20 feet?

Use 3.14 for pi

About 5 times

About 4.25 times

About 13 times

About 1 time

100 %

Circles: Area and Circumference, Auto-Gen

Total questions: 15

Worksheet time: 4hrs 45mins

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