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Post-Test: Angles of Polygons
Contributed by: Sjoberg
(Original author: Lehnert)
  • 1. What is the interior angle sum of a heptagon (7 sides)?
  • 2. What is the measure of 1 interior angle of a regular octagon?
  • 3. What is the interior angle sum of a trapezoid?
  • 4. If each interior angle of a regular polygon is 60 degrees, how many sides does it have?
  • 5. If a regular polgon has an interior angle with a measure of 108 degrees, how many sides does it have?
  • 6. What is the sum of the interior angles of a decagon?
  • 7. If the interior angle sum of a polygon equals 1440, how many sides does it have?
  • 8. What is the sum of the interior angles of a hexagon?
  • 9. What is the interior angle sum of a convex 20-gon?
  • 10. What is the measure of 1 interior angle of a regular decagon?
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