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Question
Illustrate, if posible, one of the following with a rough diagram:
A colsed curve that is not a polygon.
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Solution
Polygons are made up of straight lines, not curves.

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| Figure | ![]() |
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| Side | 3 | 4 | 5 | 6 |
| Angle sum | 180° |
2 × 180° = (4 − 2) × 180° |
3 × 180° = (5 − 2) × 180° |
4 × 180° = (6 − 2) × 180° |
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