Polygons
Angles
Angles of ll Lines
Sum of Angles
Interior/Exterior Angles
100
name: 4 sides
Quadrilateral
100
sum of 90
complementary
100
line that intersects parallel lines
transversal
100
pentagon
540
100
interior: pentagon
108
200
name: 8 sides
Octagon
200
sum of 180
supplementary
200
angles 2 and 8
alternate interior
200
triangle
180
200
interior: 30 - gon
168
300
name: 7 sides
Heptagon
300
formed by intersecting lines, opposite each other, congruent
vertical angles
300
angles 8 and 4
corresponding
300
nonagon
1260
300
exterior: octagon
45
400
name: 10 sides
decagon
400
2 adjacent angles with a common vertex and sum of 180
linear pair
400
angles 2 and 3
Linear Pair
400
14-gon
2160
400
exterior: decagon
36
500
A polygon with a diagonal on the outside of the figure...
Concave
500
if angle ABC is 65 degrees, what is angle CBD if the two form a linear pair?
115
500
angles 1 and 7
alternate exterior angles
500
sum: 1080
octagon
500
If the exterior angle of a pentagon measures (3x), what is x?
24