# Length of an Arc

## Radius times the angle in radians.

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.
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## Length of an Arc

by CK-12 //at grade
Definition and measurement of an arc on a circle
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## Pi Hour

by CK-12 //at grade
Length of an Arc Interactive
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## Arc Length, Area of Sector, Linear Speed, and Angular Speed - Overview

by CK-12 //basic
Overview
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## Examples: Arc Length and Application of Arc Length

by CK-12 //at grade
Provides examples of solving arc length and how it applies in the real world.
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## Arc Length, Area of Sector, Linear Speed, and Angular Speed - Example 1

by CK-12 //basic
Find the arc length given radius and central angle
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## Arc Length, Area of Sector, Linear Speed, and Angular Speed - Example 2

by CK-12 //basic
Find the central angle given radius and arc length
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## Arc Length, Area of Sector, Linear Speed, and Angular Speed - Example 3

by CK-12 //basic
Find the area of the sector given radius and central angle
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## Arc Length, Area of Sector, Linear Speed, and Angular Speed - Example 4

by CK-12 //basic
Word Problems - find angular speed given revolutions per minute
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## Arc Length, Area of Sector, Linear Speed, and Angular Speed - Example 5

by CK-12 //basic
Word Problems - find linear speed given diameter and revolutions per minute
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• Study Guide

## Length of an Arc

by Edgar Magana //at grade
This Study Guide covers how to find the length of the arc, the area of a sector, and the length of a chord in a circle.
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