Angle Vocab 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 intersecting lines
angles
when lines intersect they form angles and angles are the space or shapes that formed between the intersecting lines - They meet at a vertex
Name angles and points
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 angles
angles 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 complementary angles (90 degrees)
supplementary (angles)
two angles combine to form a straight angle (180 degrees)
vertex
the point where two rays meet
congruent
having the same measure
degrees
a measurement used to measure angles ( small amount ) symbol= degrees
protractor
a tool that measures angles