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Topic Content:
- The General Angle __The Quadrants
The Cartesian axes x and y divide the plane into four quadrants: The 1st, 2nd, 3rd and 4th quadrants as shown in the diagram below.
The angles between 0° and 90° are said to lie in the first quadrant.
The angles between 90° and 180° are in the second quadrant.
The angles between 180° and 270° are in the third quadrant.
The angles between 270° and 360° are in the fourth quadrant.
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