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11.1-11.2 Review The answers are on the last slide to check when you’re done.

11.1-11.2 Review The answers are on the last slide to check when you’re done. 1. What is the sum of the interior angles of a nonagon?. 2 . What is the sum of the exterior angles of a 32-gon?. 3. What is the measure of one interior angle of a regular 20-gon?.

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11.1-11.2 Review The answers are on the last slide to check when you’re done.

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  1. 11.1-11.2 Review The answers are on the last slide to check when you’re done.

  2. 1. What is the sum of the interior angles of a nonagon?

  3. 2. What is the sum of the exterior angles of a 32-gon?

  4. 3. What is the measure of one interior angle of a regular 20-gon?

  5. 4. What is the measure of one exterior angle of a regular pentagon?

  6. 5. The measure of one interior angle of a regular polygon is 120o. How many sides does it have?

  7. 6. The measure of one exterior angle of a regular polygon is 45o. How many sides does it have?

  8. 7. The sum of the interior angles of a polygon is 2700o. How many sides does it have?

  9. 8. Solve for x. (x2)o (10x+ 20)o 140o 150o (8x)o 130o

  10. 9. Solve for x.

  11. 10. A regular hexagon has a radius of 14 cm. Find its area. Keep your answer in exact, simplest form.

  12. 11. A regular nonagon has an apothem of 2 in. Find its area. Round to the nearest tenth at the end.

  13. 12. A regular dodecagon (12 sides) has a radius of 6 mm. Find its area.

  14. 13. A regular hexagon has a side of 8 cm. Find its area. Keep your answer in exact, simplest form.

  15. 14. A regular 20-gon has an area of 150 ft2. Each side is 5 ft. Find its apothem.

  16. 15. A regular hexagon has an apothem of 6 in. Find its radius in exact, simplest form.

  17. 1260o 9. x = 6 360o 10. 293 cm2 162o 11. 13.1 in2 72o 12. 108 mm2 6 sides 13. 96 cm2 8 sides 14. 30 ft 17 sides 15. 4 in x = 10

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