5 Slides • 3 Questions

Arc Length

By Steven Giesting

2

Recall from earlier classes that the distance around a circle is called the circumference.

We can calculate the circumference in 1 of 2 ways.

3

Example 1: Find the circumference

4

Multiple Choice

What is the circumference of the circle shown?

1

$5\pi$

2

$10\pi$

3

$25\pi$

4

$50\pi$

5

Today, we want to learn how to determine the length of an arc. Think about it like finding the distance we walk if we don't go all the way around the circle.

6

7

Multiple Choice

Find the length of arc PQ

1

$3\pi$

2

$\frac{27\pi}{2}$

3

$\frac{3\pi}{2}$

4

$6\pi$

8

Multiple Choice

What is the length of arc PQ

1

$3\pi$

2

$6\pi$

3

$9\pi$

4

$18\pi$

Arc Length

By Steven Giesting

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