Interior Angles
Exterior Angles
Triangles
Mixed Challenge
100
The sum of the interior angles of a triangle is...
180
100
The sum of the exterior angles on any polygon is...
360 degrees, only applies to convex polygons
100
Find the missing interior angle.
26 degrees
100
What is the measure of one interior angle of a regular pentagon?
108 degrees
200
The formula for the sum of the interior angles of a polygon with n sides is...
180(n-2),
200
The measure of the exterior angles of a regular hexagon is...
60 degrees
200
Find the measure of angle 2
72 degrees
200
What is the measure of one exterior angle of a polygon with 360 sides?
1 degree
300
The interior angle sum of a 9-sided polygon, also called a nonagon or enneagon, is this number of degrees.
1260°
300
The sum of the exterior angles of a 36-gon is...
360 degrees
300
Find x.
x = 4
300
What is the formula for finding one interior angle?
(n-2)180/n
400
The sum of the interior angles of a polygon with 17 sides is...
2700
400
The measure of an exterior angle of a regular quadrilateral is...
90 degrees
400
Triangle ABC has angle A = (12x-4)°, and angle B = (18x+10)°. The exterior angle at C = (24x+18)°.
Find x.
x = 2
400
I'm thinking of a regular polygon whose interior angles each measure 156 degrees. How many sides does the polygon have?
15 sides
500
The measure of one interior angle of a polygon with 1000 sides is...
179.64 degrees
500
A regular polygon with an exterior angle measure of 18 degrees has how many sides?
20
500
Find m<SRT
46 degrees
500
What is the difference of the sum of the interior angles of a regular 45-gon and the sum of the exterior angles of a 45-gon?
...