Area of a Circle Sector From Angle to Area (Closest Integer) (Level 1)

This math topic focuses on calculating the area of a circle sector, teaching students to determine sector areas when given the sector's angle and the circle’s radius. This skill uses geometry concepts relating to circle areas and sector proportion calculations. Exercises involve finding the area (rounded to the nearest integer) for sectors with specified angles (90°, 180°, 270°) and varying radii, requiring angle-to-area conversion. This elementary level geometry content is designed to help students understand and apply formulas for circle sectors in practical problems, enhancing their spatial reasoning and calculation skills in geometry.

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 1)'. 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 90º in the circle with radius 1

a

7

b

1

c

3

d

9

e

6

f

5

2

Find the area (to the closest integer) of the green shaded sector with an angle of 270º in the circle with radius 4

a

38

b

44

c

62

d

50

e

47

f

14

3

Find the area (to the closest integer) of the green shaded sector with an angle of 270º in the circle with radius 2

a

1

b

12

c

13

d

15

e

9

f

5

4

Find the area (to the closest integer) of the green shaded sector with an angle of 270º in the circle with radius 3

a

7

b

19

c

13

d

21

e

31

f

1

5

Find the area (to the closest integer) of the green shaded sector with an angle of 180º in the circle with radius 3

a

11

b

14

c

10

d

15

e

6

f

20

6

Find the area (to the closest integer) of the green shaded sector with an angle of 90º in the circle with radius 2

a

4

b

7

c

3

d

6

e

1

f

12

7

Find the area (to the closest integer) of the green shaded sector with an angle of 90º in the circle with radius 6

a

8

b

44

c

30

d

28

e

10

f

46