Co-Terminal Angles - class presentation

Front

What are co-terminal angles?

Back

Co-terminal angles are angles that share the same terminal side when drawn in standard position. They can be found by adding or subtracting multiples of 360° (or 2π radians) to/from the angle.

Front

How do you find a positive co-terminal angle for a given angle?

Back

To find a positive co-terminal angle, add 360° (or 2π radians) to the given angle until the result is positive.

Front

How do you find a negative co-terminal angle for a given angle?

Back

To find a negative co-terminal angle, subtract 360° (or 2π radians) from the given angle until the result is negative.

Front

What is the positive co-terminal angle for -120°?

Back

The positive co-terminal angle for -120° is 240° (found by adding 360°).

Front

What is the negative co-terminal angle for -14°?

Back

The negative co-terminal angle for -14° is -374° (found by subtracting 360°).

Front

Find the positive co-terminal angle for 170°.

Back

The positive co-terminal angle for 170° is 530° (found by adding 360°).

Front

What is the formula to find co-terminal angles?

Back

The formula to find co-terminal angles is: For an angle θ, co-terminal angles can be found using θ + 360n, where n is any integer.

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Front

If an angle is 450°, what is its positive co-terminal angle?

Back

The positive co-terminal angle for 450° is 90° (found by subtracting 360°).