Vocabulary
A series of points that extends in two opposite directions without end.
Line
Number of lines through two points.
One
The transformation that flips over a line of symmetry
Reflection
2 angles that share a common side and vertex
Adjacent Angles
Angles of the same size and shape.
Congruent
Points that lie on the same line.
Collinear Points
Two lines intersect at a ___________.
Point
(x, y) --> (-x, -y)
180o Rotation
Angles that total 90o
Complementary Angles
The common endpoint of 2 rays that form the sides of an angle.
Vertex
A flat surface that contains many lines and extends without end in the directions of all the lines.
Plane
AB + BC = AC
Segment Addition Postulate
Translations, Rotations, Reflections preserve distance, angle measure.
Rigid Motion Transformations
Adjacent, Supplementary Straight Angle
Linear Pair
Lines forming 90o Right Angles
Perpendicular Lines
Points and lines in the same plane.
Coplanar
Two planes will intersect at a __________.
Line.
The symbolic form: (x, y) --> (x+h, y+k) represents this transformation.
Translation
Congruent angles across each other on intersecting lines.
Vertical Angles
A ray that divides an angle into 2 congruent angles
Points, Lines & Planes
Undefined Terms
Three points that describe a single plane.
Non-collinear
A transformation that involves a scale factor creating an enlargement or reduction in a preimage
Dilation
90o vertical angles are also known as this angle pair.
Supplementary Angles
A line, ray or segment that forms a right angle to a segment at its midpoint.
Perpendicular Bisector