Mathematics
Pie Chart of Circle Quadrants
Last reviewed on 2026-05-22.
Mathematics — verifiable data, editable template
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A circle divides naturally into four equal quadrants of 90° each — the basis for the Cartesian coordinate system. Quadrants are numbered counter-clockwise from the upper-right.
The data
- Quadrant I (+x, +y) — 1 quadrant
- Quadrant II (−x, +y) — 1 quadrant
- Quadrant III (−x, −y) — 1 quadrant
- Quadrant IV (+x, −y) — 1 quadrant
Source
Standard Cartesian geometry.
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