Geom Basics
What is a point?
A point is a location that has no shape or size (Always used a capital letter to name a point).
What is Distance?
The length of 2 connecting points and it is always positive
What is an angle?
Two rays with a common endpoint
What are Adjacent Angles?
2 angles that are next to each other and share a common side
What is described with a line with an arrow pointing to the right above two letters?
Ray
What is a plane?
A plane is a flat surface made up of points, that extends indefinitely in all directions. 3 points or more can make up a plane
What is the midpoint?
A point that divides the segment into 2 congruent segments
What is the vertex?
The common point of an angle
What is a linear pair?
Two angles that are adjacent and supplementary. They form a straight line.
What does the notation for Angle XWZ look like?
< XWZ
What is a segment?
A portion of a line that has two endpoints.
What is the Midpoint Formula?
(x1+x2/2, y1+y2/2)
What is an acute angle?
Angle that is less than 90 degrees
What are Complementary angles?
Any angles whose sum is 90 degrees
What does the notation of Line AB look like?
AB with a line over it, arrows in both directions
What are opposite rays?
Two rays that start off at a common point and go off in opposite directions.
What does it mean to bisect?
To divide two equal parts
What is a right angle?
Angle that is 90 degrees
What are vertical angles?
Two angles across from each other on intersecting lines. (Always congruent)
What does the Parallel and Perpendicular symbol look like?
Parallel - two lines that are vertical and do not intersect
Perpendicular - two lines that intersect at a right angle, looks like an upside down capital T
What are perpendicular lines?
Lines that intersect at right angles
What is a segment Bisector?
A line, ray, or segments that intersect a segment at its midpoint.
What is a angle bisector?
A ray that divides an angle into 2 congruent angles.
What are supplementary angles?
Angles that add up to 180 degrees
What does the congruent symbol look like?
It looks like an = with a squiggly line over it.