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

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Presentation transcript:

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?

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

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

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

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

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

9. Solve for x.

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

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

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

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

14. A regular 20-gon has an area of 150 ft 2. Each side is 5 ft. Find its apothem.

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