Free Printable Area and circumference of circles, arcs, sectors

Worksheets

Area and circumference of circles, arcs, sectors

Total questions: 20

Worksheet time: 2hrs 47mins

Name

Class

Date

What is the area of the shaded region? Round to the nearest hundredth.

1.26

452.39

113.10

40715.04

How many degrees are in a circle?

180

270

360

What is the distance marked off by L called?

circumference

tangent

arc length

sector

What is the green area called?

sector

segment

arc

section

Find the length of the bold arc.

61.3ft

20.4ft

7351.3ft

22,068ft

find the area of the circle below.

100 cm

225 cm

9 cm

28.27 cm

Find the circumference of the circle.

113.04

1017.36

254.34

56.55

Meg swam from one side of her circular pool to the other side going through the center. If Meg swam 8 feet, what is the approximate circumference of Meg's pool?

16 feet

25.13 feet

251.2 feet

4 feet

When she is outdoors, Tasha, the dog, is tied to a stake in the center of a circular area of radius 24 feet. The angle between her dog house and her favorite hydrant is 165 degrees. What is the length of the arc from her dog house to the hydrant, following minor arc DG, to the nearest foot.

10.

If my radius is 10ft, what is my diameter?

20ft

5ft

31.4ft

62.8ft

11.

Find the circumference of a circle with a radius of 12.5 mm .

37.68mm

18.84mm

78.5mm

none of the above

12.

Does this picture show the diameter or radius of a circle?

Diameter

Radius

13.

The homeowners association wants to enclose a circular playground in a fence. The need to find the amount of fencing they need to purchase. Will they need the area or circumference of the playground?

area

circumference

neither

14.

Danielle wants to make a cookies for 3 friends. The radius of a cookie is 5 inches. If she wants to ice ALL 3 of the cookies, how many square inches of cookies must she cover with icing?

47.1 in²

235.5 in²

78.5 in²

15.7 in²

15.

A circle has a circumference of 36π meters. What is the radius of the circle?

36 meters

6 meters

12 meters

18 meters

16.

A Circle has a radius of 6 inches. What is the area of the circle? (Best Choice)

3π or about 9.42 in²

6π or about 18.84 in²

12π or about 37.68 in²

36π or about 113.04 in²

17.

What is the area of the shaded region?

50.27 units²

3015.93 units²

8.38 units²

4.19 units²

18.

What is the radius of a circle with an area of 49π?

19.

What is the area of the shaded sector?

40π/9 (13.96)

400π/9 (139.6)

80π/9 (27.9)

1600π/9 (558.5)

20.

What is/are the formula(s) to find the area of a circle?

πr²

2πr

√π

Reset

Area and circumference of circles, arcs, sectors

Total questions: 20

Worksheet time: 2hrs 47mins

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