point
A Dot
Line
A straight path that extends without end in opposite directions
Line segment
part of a line with two endpoints
Ray
A part of a line, with one endpoint, that continues without end in one direction
angle
A figure formed by two rays with a common endpoint
Congruent
Equal or the same size
Plane
A slanted four sided figure that extends in all directions infinitely
Co-linear
Points on the same line.
Intersect
To cross
Parallel
Lines that stay the same distance apart and never intersect.
Perpendicular
Intersecting at or forming right angles (90 degrees)
Midpoint
A point that divides a segment into two congruent segments (two parts that are the same size)
Bisect
To divide into two equal or congruent parts