Points and Lines
Illustrated by dots, corners of boxes and tips of pointed objects
What is points?
Two points on a line and all points between them
What is a line segment?
A union of two rays and common endpoint
What is an angle?
Opposite sides parallel and all sides of equal length
What is a rhombus?
Two or more points are on the same line
What is collinear?
Set of sets that are straight and extending indefinitely in both directions
What is a line?
Consists of a point and a line that extends in one direction
What is a ray?
Method for measuring angles
What is degrees?
Simple closed curve that is in union of line segments
What is a polygon?
The point were two rays or two line segments meet
What is the vertex?
Points, lines, and planes are undefined terms in geometry they are used for this
What is define terms and geometric figures?
When you have a line segment the middle point is known this
What is the midpoint?
Sum of two angles equal 90 degrees
What is complementary?
Triangle that has at least two sides of equal length
What is an Isosceles triangle?
A device for measuring angles
What is a protractor?
Flat like a table top but extends indefinitely
What is a plane?
Divide into two parts of equal length
What is to bisect?
measure greater than 90 degrees but less than 180 degrees
What is an obtuse angle?
Nonparallel sides have equal length
What is an Isosceles trapezoid?
Two lines that intersect and form a right angle
What is perpendicular?
The relationship study of lines, angles, surfaces, and solids
What is Geometry?
How do you tell when to line segments are equal
What is AB=CD?
Two angles have the same vertex, share a common side but do not overlap
What is an adjacent angle?
End points of polygon segments
What is vertices?
The union of a circle and its interior
What is a disk?