Polygon Exterior Angles
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Polygon Exterior Angles
Core ideas
Choose the best answer, identify each true statement, or complete the rule.
- 180°
- 360°
- 540°
- It depends on how many sides the polygon has
- 18°
- 36°
- 45°
- 144°
- An interior angle and its adjacent exterior angle add to 180°.
- The exterior angles of a regular polygon are equal.
- The exterior-angle total increases when a polygon has more sides.
- Walking once around a convex polygon gives a total turn of 360°.
Find missing angles
Use the 360° total for a complete circuit around a polygon. Show your calculation where space is provided.
- Regular pentagon
- Regular hexagon
- Regular octagon
- Regular 15-sided polygon
- 60°
- 24°
- 45°
- 72°
Explain and extend
Use clear reasoning and include working for calculation questions.
3 printable pages
Page 1
Page 2
Page 3
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