| A | B |
|---|
| 720 degrees | the sum of the interior angles of a hexagon |
| 108 | the measure of one interior angle of a regular pentagon |
| 360 | the sum of the exterior angles of a heptagon |
| 45 | the measure of one exterior angle of a regular octagon |
| quadrilateral | the polygon whose interior angles sum to 360 degrees |
| 1440 degrees | the sum of the interior angles of a decagon |
| 140 degrees | the measure of one of the interior angles of a regular nonagon |
| octagon | the polygon whose interior angles sum to 1080 degrees |
| 540 | the sum of the interior angles of a pentagon |
| 120 | the measure of one exterior angle of an equilateral triangle |
