Angles
An angle that is 90o
Right Angle
The point where lines cross.
Intersection
Our door has a right angle.
True
A line that has a beginning and an end.
Line Segment
An angle that is smaller or less than a right angle.
Acute Angle
Lines that point in exactly the same direction and will never cross.
Parallel Lines
A Ray has 2 endpoints.
False
A part of a line that has one endpoint and goes on infinitely in only one direction.
Ray
An angle that is greater than or bigger than a right angle.
Obtuse Angle
Lines that form all equal angles that you could fit a square into.
Perpendicular Lines
Geometry is the study of numbers.
False
Keep on going infinitely in either direction.
Line
An angle equal to 180o
Straight Angle
A part of a circle that can be used to represent an angle between two intersecting lines.
Arc
Two angles that are combined to equal 90o are Complementary Angles.
True