Lesson 4.1 Radian & Degree Measure. Parts and Types of Angles. Terminal & Initial. Positive & Negative. Coterminal A positive and negative angle where. 30 o & ______. 120 o & ______. Investigate Draw a circle and make up a number for the radius.
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Terminal & Initial
Positive & Negative
A positive and negative angle where
30o & ______
120o & ______
The angle size when the arc length equals the radius of a circle
Question: How many radians to equal 180o? 360o?
The units of an angle are in degrees or radians
Sketch in standard position.
Find 2 coterminal angles to
Units = radians
Arc Length =
Linear Speed =
Speed = Distance over time
Angular Speed =
Find the angle in degrees