Exterior angles of polygons

12 questions

1. An ___ angle is an angle on the outside of a polygon between an extension of an edge and its adjacent edge.
2. Adjacent angles on a straight line sum to ___°.
3. The angle x° is ___°.
4. What is the size of ∠CDA?
5. A heptagon is a 7-sided polygon. The sum of its interior angles is ___°.
6. Solve the equation: 5x + 40 = 360. x = ___
7. An interior angle and its adjacent exterior angle sum to ___°.
8. In which diagram is an exterior angle marked?
9. The exterior angle at B is ___°.
10. Exterior angles in a polygon sum to ___°.
11. The angle x° is ___°.
12. The value of x is ___.

License: OGL