Multiple Choice
Convert the angle from degrees to radians.
12. Trigonometric Functions
Angles
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Which angle is NOT a positive angle drawn in standard position?
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B
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D
Verified step by step guidance1
Step 1: Understand the concept of a positive angle in standard position. A positive angle is measured counterclockwise from the positive x-axis, starting at the origin.
Step 2: Analyze each image provided. In the first image, the angle of 78° is measured counterclockwise from the positive x-axis, making it a positive angle in standard position.
Step 3: In the second image, the angle of 129° is also measured counterclockwise from the positive x-axis, making it a positive angle in standard position.
Step 4: In the third image, the angle of 54° is measured clockwise from the positive x-axis. This is not a positive angle in standard position because positive angles are measured counterclockwise.
Step 5: In the fourth image, the angle of 222° is measured counterclockwise from the positive x-axis, making it a positive angle in standard position.
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