3 Slides • 11 Questions

Arc Length and Sector Area

By Matthew Tomes

Material: Pencil, Paper and a Cacluator (Phone App is fine)

OInstructions: This lesson is to be completed on your laptop/tablet. It is a series of breif videos and few practice problems after each. You take notes on a sheet of paper as you watch the videos.

2

3

Multiple Choice

Find the length of the bold arc.Leave pi in your answer.

1

5688π ft

2

15.8π ft

3

150.4π ft

4

54,150 ft

4

Multiple Choice

In circle O, the radius is 4, and the length of minor arc AB is 4.2 feet. Find the measure of minor arc AB to the nearest degree.

1

90

2

60

3

55

4

113

5

Multiple Choice

Find the arc length. Leave your answer in terms of π.

1

7/4π

2

7/2π

3

1/8π

4

45π

6

Multiple Choice

Find the arc length of the bolded arc. Give your answer in terms of π.

1

5.42π cm

2

17.02 cm

3

35.21π cm

4

26π cm

7

Multiple Choice

1

60^o

2

157^o

3

50^o

4

493^o

8

Multiple Choice

Alison is jogging on a circular track that has a radius of 140 feet. She runs along the track from point R to point N, a distance of 230 feet. Find to the nearest degree, the measure of minor arc RN.

1

47

2

74

3

94

4

123

9

10

Multiple Choice

Find the arc length.

1

3π/4 ft

2

39π/4 ft

3

13π/4 ft

4

4π/13 ft

11

Multiple Choice

Find the arc length.

1

3π/4 ft

2

39π/4 ft

3

13π/4 ft

4

4π/13 ft

12

Multiple Choice

Find the length of the intercepted arc given the central angle $\theta=\frac{\pi}{2}$ and a radius $r=4in$ . Round to the nearest tenth.

1

6.3 in

2

6.2 in

3

0.1 in

4

0.2 in

13

Multiple Choice

Given that m∠AOB = $\frac{13\pi}{18}$ radians and the radius is 8 cm, what is the length of arc AB?

1

$\frac{13\pi}{8}$ cm

2

$\frac{52\pi}{9}$ cm

3

$\frac{\pi}{9}$ cm

4

$\frac{9\pi}{52}$ cm

14

Poll

Rate yourself on a 1 through 4 scale on your ability to complete the problems in the lesson. A

1

Lost

2

On my way

3

I got it.

4

Too easy Tomes.

Arc Length and Sector Area

By Matthew Tomes

Material: Pencil, Paper and a Cacluator (Phone App is fine)

OInstructions: This lesson is to be completed on your laptop/tablet. It is a series of breif videos and few practice problems after each. You take notes on a sheet of paper as you watch the videos.

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Arc Length

​Arc Length and Sector Area

​Arc Length and Sector Area

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Arc Length and Sector Area

Arc Length and Sector Area