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Geometry 9.1 Practice

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  • What is the sum of the measures of the interior angles of a pentagon?
    540º
  • The sum of the interior angles of a polygon is 1620º. How many sides does the polygon have?
    11 sides
  • The sum of the interior angles of a polygon is 3960º. How many sides does the polygon have?
    24 sides
  • Five angles of a hexagon measure 119º, 129º, 104º, 139º, and 95º. What is the measure of the sixth angle?
    134º
  • What is the measure of EACH interior angle of a regular 20-gon?
    162º
  • Find the value of x.
    x = 12
  • What is the measure of EACH interior angle of a regular octagon?
    135º
  • What is the sum of the measures of the exterior angles of a nonagon?
    360º
  • What is the sum of the measures of the interior angles of a 27-gon?
    4500º
  • If the interior angle of a regular polygon measures 108º, how many sides does the polygon have?
    5 sides
  • If the figure is a regular polygon, find the value of x.
    x = 14
  • Find the measure of angle B.
    79º
  • What is the measure of EACH exterior angle of a regular 20-gon?
    18º
  • Find the value of x.
    116º
  • Find the value of x.
    94º
  • If the exterior angle of a regular polygon measures 9º, how many sides does the polygon have?
    40 sides
  • Solve for x.
    x = 17