Area of a Circle Sector From Angle to Area (Closest Integer) (Level 3)

This math topic involves calculating the area of a sector of a circle. This requires the application of geometry concepts, specifically in the circle area, sectors, and related 'donut' areas. The learners are provided with different sector angles and radii, and they should calculate the area of the corresponding sectors, rounded to the closest integer. Multiple choice answer options are provided for each question. This topic also requires a general understanding of angles and circles.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.

Area of a Circle Sector From Angle to Area (Closest Integer) Worksheet

Math worksheet on 'Area of a Circle Sector From Angle to Area (Closest Integer) (Level 3)'. Part of a broader unit on 'Geometry - Circle Area, Sectors and Donuts - Intro' Learn online: app.mobius.academy/math/units/geometry_circles_sector_donut_area_logic_intro/

1

Find the area (to the closest integer) of the green shaded sector with an angle of 240º in the circle with radius 5

a

32

b

42

c

22

d

27

e

52

f

92

2

Find the area (to the closest integer) of the green shaded sector with an angle of 45º in the circle with radius 5

a

6

b

10

c

13

d

7

e

15

f

4

3

Find the area (to the closest integer) of the green shaded sector with an angle of 240º in the circle with radius 3

a

25

b

19

c

17

d

10

e

22

f

23

4

Find the area (to the closest integer) of the green shaded sector with an angle of 160º in the circle with radius 6

a

90

b

50

c

20

d

35

e

15

f

30

5

Find the area (to the closest integer) of the green shaded sector with an angle of 225º in the circle with radius 6

a

1

b

64

c

71

d

134

e

92

f

50

6

Find the area (to the closest integer) of the green shaded sector with an angle of 144º in the circle with radius 4

a

20

b

4

c

34

d

22

e

36

f

14

7

Find the area (to the closest integer) of the green shaded sector with an angle of 60º in the circle with radius 6

a

23

b

26

c

24

d

18

e

10

f

19