# geometry

posted by
**Justin**
.

1. An exterior angle of a regular polygon measures 30 degrees. What is the measure of an interior angle?

30

60

120

150

2. How many degrees are in each interior angle of a regular pentagon?

50

72

108

120

3. If all of the diagonals are drawn from a vertex of a hexagon, how many triangles are formed?

2

3

4

5

4. Find the number of sides of a regular polygon if one interior angle is 120 degrees.

3

4

5

6

5. If all of the diagonals are drawn from a vertex of an octagon, how many triangles are formed?

5

6

7

8

6. Find the number of sides of a regular polygon if one interior angle is 60 degrees.

3

4

5

6

7. If all of the diagonals are drawn from a vertex of a quadrilateral, how many triangles are formed?

1

2

3

4

8. If all of the diagonals are drawn from a vertex of an n-gon, how many triangles are formed?

n - 2

n - 1

n

n + 1

9. What is the measure of one exterior angle of a regular hexagon?

60

72