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Lesson 5-1: Angles and Degree Measure LEQ - What are co-terminal angles and reference angles?

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Presentation on theme: "Lesson 5-1: Angles and Degree Measure LEQ - What are co-terminal angles and reference angles?"— Presentation transcript:

1 Lesson 5-1: Angles and Degree Measure LEQ - What are co-terminal angles and reference angles?

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3 Give the angle measurements for each of the following:  3 clockwise rotations  2.4 counterclockwise rotations Positive angles are measured counter-clockwise Negative angle are measured clockwise

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6  If αis the degree measure of an angle, then all angles meas°, where k is an integer, are coterminal with α.  Ex. Identify all angles coterminal with 45°

7  If 775º is in standard position, Determine a coterminal angle that is between 0 and 360º. State the quadrant in which the terminal side lies.  If -777º is in standard position, Determine a coterminal angle that is between 0 and 360º. State the quadrant in which the terminal side lies.

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12  Convert º to degrees, minutes and seconds.  Convert º to degrees, minutes and seconds.  Convert 13º 5' 3“ to degrees.

13 Convert º to degrees, minutes and seconds. Convert º to degrees, minutes and seconds. Convert 13º 5' 3“ to degrees.

14  Vertex  Initial side  Terminal side  Degrees  Minutes  Seconds  Quadrantial Angle  Co-terminal Angle


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