# Geometry

## 27 terms

coplanar angles that have a comman vertex and one comman side, but no comman interior points.
angles that share the same line.

### vertical angles

two non adjacent angles formed by two intersecting line.
two angles that don't share the same line

### liner pair

two adjacent angles where non common sides are two rays going in opposite direction
two angles that make a line

### complimentery angle

sum of the mesures of the two angles is 90 degrees
two angles that when added make a 90 degree angle

### suplementery angle

sum of the mesures of the two angles is 180 degrees.
two angles when added make a 180 degree angle

### colliner

a set of Points that lie on the same line

### coplaner

points, line, segmants, etc. that lie in the same plane

### skew lines

lines that do not intersect and are not coplanar

### parrallel lines

2 lines that lie in the same plane and will never intersect

### perpendiculer lines

line that cross each other to make a perfect right angle

### line segment

part of a line with two endpoints

### ray

a straight line extending from a point

### segment bisector

a segment, line or ray that divides a segment into two congruent halves

### angle bisector

a line or ray that divides an angle in half

### y intersept

the point where a graph intersects the y-axis

### slope

steepness of a line; constant rate of change; change in y over change in x

### slope-intercept form of a line

Y=Mx+b (m=slope, b= y-intercept)

### conditional statement

a type of logical statement that has two parts, a hypothesis and a conclusion
if p then q

if q, then p

### inverse

if not p then not q

### contrapositive

if not q then not p

### line

..., a length (straight or curved) without breadth or thickness

### plane

..., (mathematics) an unbounded two-dimensional shape

### point

..., a specific location in space with no size or shape

### theorem

..., A mathematical statement which we can prove to be true

### postulate

..., something accepted as true without proof; an axiom

### counter example

..., an example that shows a conjecture is false

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