Definitions Flashcards
(15 cards)
Collinear Points
three or more points on a single, straight line
Opposite Rays
two rays that start off in the same point but go two opposite directions
Complementary Angles
angles that are equal to 90°
Supplementary Angles
angles that are equal to 180°
Perpendicular Lines
two or more lines that intersect at 90° angle
Transitive Property
if a=b and b=c, then a=c
Symmetric Property
if a=b then b=a
Reflexive Property
a=a
Vertical Angles
each of the pairs of opposite angles made by two intersecting lines
Triangle Congruence Theorems
SSS, SAS, AAS, HL, and ASA
Perpendicular Bisector
segment, ray, or line that intersects a given segment at a 90° degree angle and passes through its midpoint
Angle Bisector
triangle split in half lengthwise
Median of a Triangle
a line segment joining a vertex to the midpoint of the opposite side, thus bisecting that side
Midpoint
middle point
Mid-segment of a Triangle
triangle split in half crosswise
