Measuring Angles with Circle Rotations

Name: Measuring Angles with Circle Rotations
Author: Insta~Lesson

9th Grade · Math · 45 min

Lesson Preview

I can measure angles in degrees using rotations of a circle.

1
Angles are measured in degrees, which are units of rotation.
2
A right angle is equal to 90 degrees, and a straight angle is equal to 180 degrees.
3
A tool called a protractor is used to measure angles, similar to how a ruler measures length.

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