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Definitions 1
Definitions 2
Naming Polygons
Angles 1
Angles 2
100
Made up of points and has no thickness or width.
What is a line?
100
Any segment, line, or plane that intersects a segment at it's midpoint.
What is a segment bisector?
100
A 3 sided polygon.
What is a triangle?
100
An angle that measures 90 degrees.
What is a right angle?
100
A pair of adjacent angles whose noncommon sides are opposite rays.
What is a linear pair?
200
Points on the same line.
What is collinear?
200
One endpoint and extends indefinitely in one direction.
What is a ray?
200
A 5 sided polygon.
What is a pentagon?
200
An angle that measures less than 90 degrees.
What is an acute angle?
200
Two nonadjacent angles formed by two intersecting lines.
What is a vertical angle?
300
A flat surface made up of points.
What is a plane?
300
-Intersect to form 4 right angles. -Intersect to form congruent adjacent angles. -The symbol looks like an upside down T.
What are perpendicular lines?
300
What is a 9 sided polygon?
What is a nonagon?
300
An angle that measures more than 90 and less than 180.
What is an obtuse angle?
300
Two angles whose measures have a sum of 90.
What are complementary angles?
400
Points that lie on the same plane.
What is coplanar?
400
The sum of the length of its sides.
What is perimeter?
400
A 12 sided polygon.
What is a dodecagon?
400
A ray that divides an angle into two congruent angles.
What is an angle bisector?
400
Two angles whose measures have a sum of 180.
What are supplementary angles?
500
Point halfway between the endpoints of the segment.
What is a midpoint?
500
A closed figure whose sides are all segments.
What is a polygon?
500
A 14 sided polygon.
What is a 14-gon.
500
Two angles that lie in the same plane, have a common vertex, and a common side, but no common interior points.
What is an adjacent angles?
500
Two noncollinear rays that have a common endpoint.
What is an angle?