Arc Length and Area of Sector

Presentation

•

Mathematics

•

9th Grade

•

Hard

Joseph Anderson

FREE Resource

4 Slides • 5 Questions

Arc Length and Sector Area

This is a quick recap on Chapter 5. You will need to remember the 2 formula to find arc length and area of sector.

ARC LENGTH
- refers to the 'crust' of the pizza

Multiple Choice

The circle has radius 10cm and $\angle YXZ=45\degree$ . Find the arc length YZ.

7.85 cm

3.93 cm

55.0 cm

62.8 cm

Multiple Choice

Calculate the area of the minor sector.

4248 m²

7.9 m²

2827.4 m²

11.8 m²

Multiple Choice

Calculate the area of the major sector sector.

9.2 $cm^2$

10.5 $cm^2$

31.4 $cm^2$

81.7 $cm^2$

Multiple Choice

Calculate the length of the major arc.

5040 cm

43 cm

44 cm

14 cm

Multiple Choice

Find the perimeter of the shaded sector of circle centre O, given that the radius is 6 cm and the central angle is 100°. Express answer correct to 3 significant figures.

10.5 cm

22.5 cm

27.2 cm

39.2 cm

Arc Length and Sector Area

This is a quick recap on Chapter 5. You will need to remember the 2 formula to find arc length and area of sector.

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