Download presentation

1
LG 4-4 Arc Length

2
Arc Length An arc of a circle is a segment of the circumference of the circle.

3
**Start at the point (1, 0) and walk around the circle a distance of**

Start at the point (1, 0) and walk around the circle a distance of radians. We will arrive at a point . The distance traveled, t, is shown in red. At the right of the circle is a red line segment that ends in a blue point that is exactly the same length as the red arc ending in the blue point. What is the distance that we walked?

4
**Arc length of a circle in radians**

In the Unit Circle, the arc length = theta(in radians). Why?

5
**Find the length of the arc formed by theta:**

How long is the arc subtended by an angle of radians on a circle of radius 20 cm? How long is the arc subtended by an angle of radians on a circle of radius 5 cm? Find the radian measure for the following: In a circle of radius 15 inches an angle intercepts an arc of 32 inches?

6
Bonus Given a clock with minute hand 6 cm long how far does the tip of the hand move from 12:05 to 12:20?

Similar presentations

OK

Angles and Radian Measure. 4.1 – Angles and Radian Measure An angle is formed by rotating a ray around its endpoint. The original position of the ray.

Angles and Radian Measure. 4.1 – Angles and Radian Measure An angle is formed by rotating a ray around its endpoint. The original position of the ray.

© 2018 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on special types of chromosomes genes Ppt on supply chain management of mcdonald Ppt on idiopathic thrombocytopenia purpura genetic Ppt on job evaluation definition Ppt on job evaluation examples Ppt on surface area and volume for class 10th Ppt on places in our neighbourhood download By appt only Ppt on save environment drawing Ppt on applied operational research course