Angle Vocabulary Flashcards
Parallel
Lines that never cross and are the same distance apart and may go on forever
Arc
Part of a circle that represents an angle between two intersecting lines.
Angles
When lines intersect they form angles and angles are the spaces or spaces that are formed.
Perpendicular
lines that form square corners when they intersect they form right angles.
Lines that form it are perpendicular and the angle is 90 degrees.
Right Angle
When lines cross they cross at a point called an intersection.
Intersection
Angles that are less than a right angle; 90 degrees.
Acute Angles
Angles that are greater than a right angle; 90 degrees.
Obtuse Angle
Straight Angles
Straight line - two rays pointing in opposite directions.
Complementary Angles
Two angles that form a right angle are called complementary angles.
Supplementary Angles
Two angles combine to form a straight angle.
The point were to rays meet.
Vertex
Having the same measure.
Congruent
A measurement used to measure angles.
Degrees
A tool that measures angles
Protractor