Angles FlashCards
(15 cards)
Parallel
lines that will never cross and are the same distance apart and may go on forever ( will not cross if they go on & on)
Arc
part of a circle that represents an angle between two interesting lines.
Angles
When lines intersect they form angles and angles are the spaces or shapes that are formed between the interesting lines - They meet at a Name angle by names of points ( < = angle symbol )
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*
Intersection
When line cross they cross at a point called an intersection
Acute Angles
Angles that are less than a right angle; less than 90*
Obtuse Angles
Angles greater than a right angle; greater than 90*
Straight Angles
Straight-line - two Rays pointing in opposite directions
Complementary ( angles)
Two angles that form a right angle are called complementary angles (90*)
Supplementary(angles)
Two angles combine to form a straight line angle ( 180* )
Vertex
The point where two rays meet
Congruent
Having the same measure
Degrees
A measurement used to measure angles ( small amount ) symbol = *
Protractor
A tool that measures angles