GEOMETRY(POLYGON)

posted by .

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?

  • GEOMETRY(POLYGON) -

    150n = 180(n-2)
    n = 12

    So, the figure is a 12-gon
    That should get you started

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math--fast help please

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

    In a regular polygon (equal sides and angles), you use (n-2)180 to find out what the interior angle sum is (n=number of sides in polygon) and you divide by that number by whatever n is to find out the measure of an individual angle, …
  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. Geometry

    A regular polygon has an exterior angel measure of (x+3) Degrees and an interior angle measure of (13x-33) degrees Find the measure of each angle How mant sides does this polygon have?
  5. algebra 2

    A regular polygon has interior angles of 120 degrees. How many siddes does the polygon have?
  6. Geometry

    1. How many sides does a regular polygon have if one exterior angle is 90 degrees?
  7. Geometry

    The sum of the interior angles of polygon is 1800. Find the number of sides in the polygon and, what do you call that polygon?
  8. 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
  9. 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 …
  10. Math_ Geometry

    The sum of the interior angles of a regular polygon equals 1260 degrees. How many sides does a polygon have?

More Similar Questions