# geometry

posted by .

1) In a regular polygon the difference between the interior angles of a (n-1)sided polygon & (n+1)sided polygon is 9. find n?

2) In a regular polygon the difference between the exterior angles of a (n-1)sided polygon & (n+2)sided polygon is 6. find n?

• geometry -

4.5

• geometry -

175.5

## Similar Questions

1. ### math.

Each exterior angle of a regular polygon is 15 degrees. 1.Determine the number of sides of the polygon. 2.What is the sum of the interior angles?

Find the interior and exterior angle measurements of a polygon with this many sides: x=2y help?
3. ### Algebra

The interior angles of a regular polygon are all equal. What is the measure of each interior angle of an n-sided polygon?
4. ### Identifying patterns

If the pattern of polygons continues, how many sides will polygon 98 have?
5. ### geometry

If the ratio of the interior angle to the exterior angle is 5:1 for a regular polygon, find a. the size of each exterior angle b. the number of sides of the polygon c. the sum of the interior angles d. Name the polygon
6. ### GEOMETRY(POLYGON)

A regular polygon has interior angles of 150∘. A,B,C,D are 4 consecutive points of this polygon. What is the measure (in degrees) of ∠ADC?
7. ### Math

Are the statements Always, Sometimes or Never. Please explain why. Thanks. 1. An equilateral polygon is regular. 2. The greater the number of sides of a regular polygon, the smaller the measure of any of its exterior angle. 3. The …
8. ### Geometry

If the sum of the measures of the interior angles of a n-sided polygon is 1,0800, then set up a mathematical model to find the number of sides of the polygon.