Interior Angles
Exterior Angles
Triangles
Polygons
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
100
Find the missing interior angle.
26 degrees
100
What is a polygon with 3 sides called?
Triangle
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...
Bonus 200 pts for the formula of each interior angle using n for the number of sides
180(n-2), or 180n - 360
the above divided by n
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 a polygon with 5 sides called?
Pentagon
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 a polygon with 10 sides called?
Decagon
300
I'm thinking of a regular polygon whose interior angles each measure 156 degrees. How many sides does the polygon have?
15 sides
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
What is a polygon with 12 sides called?
Dodecagon
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 sum of the interior angles of a polygon with 1000 sides is...
179640 degrees
500
A regular polygon with an exterior angle measure of 18 degrees has how many sides?
20
500
Find x.
x = 67
500
What is a polygon with 100 sides called?
Hectagon
500
The ratio of the angles of a triangle is 2:3:5. In degrees, what is the measure of the largest angle.
90 degrees