Angle vocabulary Flashcards
Parallel
Lines that will never cross and are the same distance apart any may go on forever.
Arc
Part of a circle that represents an angle between 2 intersecting lines.
Angles
When lines intersect they form angles and angles are the spaces or shapes that are formed between the intersecting lines. They meet at a vertex.
Perpendicular
Lines that form square corners when they intersect, they form right angles.
Right angles
Lines that form it are perpendicular and the angle measures 90 degrees.
Intersection
When lines cross they cross at a point called an intersection.
Acute angles
Angles that are less than a right angle, less than 90 degrees
obtuse angle
Angles that are greater than a right angle, greater than 90 degrees.
straight angle
straight line- two rays pointing in opposite directions
Complementary angles
Two angles that form a right angle are called are called complementary angles.
Supplementary angles
two angles combine to form a straight angle.
Vertex
The point where two rays meet.
Congruent
Having the same measurement.
Degrees
a measurement used to measure angles.
Protractor
A tool that measures angles