Perimeter of an arc practice exercise 2

Question 1

A chapati tin is shaped like a sector with radius 14 cm and angle 120°. What is the perimeter of the tin edge? (Use π = 22/7)

Question 2

A chapati tin is shaped like a sector with radius 14 cm and angle 120° as shown below. What is the perimeter of the tin edge? (Use π = \( \frac{22}{7} \)) (1 mark)

Question 3

A chapati tin is shaped like a sector with radius 14 cm and angle 120° as shown below. What is the perimeter of the tin edge? (Use π = \( \frac{22}{7} \)) (1 mark)

Question 4

A circular flower bed has a sector with angle 90° and radius 10 m. What is the perimeter of this sector? (Use π = 3.14)

Question 5

A circular flower bed has a sector with angle 90° and radius 10 m. What is the perimeter of this sector? (Use π = 3.14) (1 mark)

Question 6

A circular flower bed has a sector with angle 90° and radius 10 m. What is the perimeter of this sector? (Use π = 3.14) (1 mark)

Question 7

A circular flower bed has a sector with angle 90° and radius 10 m as shown below. What is the perimeter of this sector? (Use π = 3.14) (1 mark)

Question 8

A circular flower bed has a sector with angle 90° and radius 10 m as shown below. What is the perimeter of this sector? (Use π = 3.14) (1 mark)

Question 9

A school in Nairobi is building a running track shaped like a sector with a radius of 35 m and angle 120°. How many metres of track border must be installed along the curved edge and straight sides?

Question 10

A school in Nairobi is building a running track shaped like a sector with a radius of 35 m and angle 120°. How many metres of track border must be installed along the curved edge and straight sides? (take \( \pi = \frac{22}{7} \) (1 mark)

Question 11

A sector has a perimeter of 20 cm and radius of 5 cm. What is the arc length?

Question 12

A sector has a perimeter of 20 cm and radius of 5 cm. What is the arc length? (1 mark)

Question 13

A sector has a perimeter of 20 cm and radius of 5 cm. What is the arc length? (1 mark)

Question 14

A security light covers an area in the shape of a sector with radius 10 m and angle 270°. What is the perimeter of the area it lights?

Question 15

A security light covers an area in the shape of a sector with radius 10 m and angle 270°. What is the perimeter of the area it lights? (1 mark)

Question 16

A security light covers an area in the shape of a sector with radius 10 m and angle 270°. What is the perimeter of the area it lights? (1 mark)

Question 17

A security light covers an area in the shape of a sector with radius 10 m and angle 270°. What is the perimeter of the area it lights? (1 mark)

Question 18

A signboard in the shape of a sector has a radius of 7 cm and a central angle of 60°. What is the perimeter of the signboard? (Use π = 22/7)

Question 19

A signboard in the shape of a sector has a radius of 7 cm and a central angle of 60°. What is the perimeter of the signboard? (Use π = \( \frac{22}{7} \)) (1 mark)

Question 20

A signboard in the shape of a sector has a radius of 7 cm and a central angle of 60°. What is the perimeter of the signboard? (Use π = \( \frac{22}{7} \)) (1 mark)

Question 21

A signboard in the shape of a sector has a radius of 7 cm and a central angle of 60°. What is the perimeter of the signboard? (Use π = \( \frac{22}{7} \)) (1 mark)

Question 22

Refer to the diagram below showing a curved road bend in Kisii. The road bend forms a sector of a circle with a radius of 20 m and a central angle of 150°. Use \( \pi = 3.14 \). Calculate the total length of fencing required to line the curved edge and both straight edges. (Diagram: sector with radius 20 m, angle 150°)

Question 23

The diagram below shows a road bend that forms a sector of a circle with a radius of 20 m and a central angle of 150°. Calculate the total length of fencing required to line the curved edge and both straight edges. Use \( \pi = 3.14 \). (1 mark)

Question 24

The diagram below shows a road bend that forms a sector of a circle with a radius of 20 m and a central angle of 150°. Calculate the total length of fencing required to line the curved edge and both straight edges. Use \( \pi = 3.14 \). (1 mark)

Question 25

The diagram below shows a road bend that forms a sector of a circle with a radius of 20 m and a central angle of 150°. Calculate the total length of fencing required to line the curved edge and both straight edges. Use \( \pi = 3.14 \). (1 mark)

Question 26

The diagram below shows a road bend that forms a sector of a circle with a radius of 20 m and a central angle of 150°. Calculate the total length of fencing required to line the curved edge and both straight edges. Use \( \pi = 3.14 \). (1 mark)

Question 27

Refer to the banner shape in the diagram below. The banner is a sector with a radius of 1.2 m and an angle of 90°. Use \( \pi = 3.14 \). Calculate the total length of edge to be hemmed around the banner. (Diagram: sector with radius 1.2 m, angle 90°)

Question 28

The diagram below shows a sector of a banner with a radius of 1.2 m and an angle of 90°. Calculate the total length of edge to be hemmed around the banner. Use \( \pi = 3.14 \). (1 mark)

Question 29

The diagram below shows a sector of a banner with a radius of 1.2 m and an angle of 90°. Calculate the total length of edge to be hemmed around the banner. Use \( \pi = 3.14 \). (1 mark)

Question 30

The diagram below shows a sector of a banner with a radius of 1.2 m and an angle of 90°. Calculate the total length of edge to be hemmed around the banner. Use \( \pi = 3.14 \). (1 mark)

Question 31

The diagram below shows a sector of a banner with a radius of 1.2 m and an angle of 90°. Calculate the total length of edge to be hemmed around the banner. Use \( \pi = 3.14 \). (1 mark)

Question 32

The diagram below shows a sector of a banner with a radius of 1.2 m and an angle of 90°. Calculate the total length of edge to be hemmed around the banner. Use \( \pi = 3.14 \). (1 mark)

Question 33

Look at the diagram of a decorative mat below. The mat is shaped like a sector with radius 28 cm and angle 225°. Use \( \pi = 3.14 \). Find the length of lace needed to run along its perimeter. (Diagram: sector with radius 28 cm, angle 225°)

Question 34

The mat is shaped like a sector with radius 28 cm and angle 225°. Find the length of lace needed to run along its perimeter. Use \( \pi = 3.14 \). (1 mark)

Question 35

The mat is shaped like a sector with radius 28 cm and angle 225°. Find the length of lace needed to run along its perimeter. Use \( \pi = 3.14 \). (1 mark)

Question 36

The mat is shaped like a sector with radius 28 cm and angle 225°. Find the length of lace needed to run along its perimeter. Use \( \pi = 3.14 \). (1 mark)

Question 37

Which of the following formulas gives the correct perimeter of a sector?

Question 38