Names of Polygons
Angle Measures
More Angle Measures
This and That
100
What is the name of a polygon with 5 sides?
pentagon
100
What is the sum of the interior measures in a regular convex nonagon?
1260
100
What type of polygon has one exterior angle measure of 120 degrees?
Triangle
100
What is the sum of the measures of an interior and exterior angle?
180
200
What is the name of a polygon with 9 sides?
nonagon
200
What is the measure of one interior angle in a decagon?
144
200
If one interior angle in a polygon measures 156 then what is the measure of one exterior angle?
24
200
What is the sum of the measures of exterior angles in any polygon?
360
300
What is the name of a polygon with 18 sides?
18-gon
300
What is the measure of one exterior angle in polygon ABCDE?
72
300
In a 15-gon, 14 angle measures equal 2200. What is the measure of the fifteenth angle?
140
300
What is the formula for finding one interior angle in a polygon?
(n - 2) 180 / n
400
What is the name of a polygon with 12 sides?
dodecagon
400
Which polygon has an interior angle sum of 720?
hexagon
400
Given a regular heptagon, what is the measure of one exterior angle rounded to the nearest tenth?
51.4
400
12
500
What is the name of a polygon with 7 sides?
heptagon
500
What is the name of the polygon whose one interior and one exterior angle measures are the same?
Quadrilateral
500
Given the polygon, find x and y.
x = 110
y = 70
500
228