Interior Angles
Exterior Angles
Triangles
Vocabulary
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...
Bonus 100 points for specifying which types of polygons the exterior angles sum applies to
360 degrees, only applies to convex polygons
100
Find the missing interior angle.
26 degrees
100
The difference between convex and concave
concave has cavities
convex is filled out/no cavities
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
Define complementary and supplementary angles
complementary sum to 90 degrees
Supplementary sum to 180 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 difference between a regular and irregular polygon?
bonus 100 can a polygon be both irregular and convex? draw an image to support
Regular polygons have all sides and angles equal
yes
300
When using a protractor to measure a rotation, how does one tell whether to use the numbers on the top or the bottom
By whether the rotation is counterclockwise or clockwise
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 the naming convention for angles? Draw and label an angle and list two different ways to name it
see board
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
Draw a line, line segment, and a ray and all of their naming conventions
see board
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