Geometry Vocab for Final Exam

Parallel Lines

Lines that are the same distance apart indefinitely, and even when extended, they will never intersect.

Trapezoid

A quadrilateral with exactly one pair of parallel sides.

Parrallelogram

A quadrilateral with 2 pairs of parallel, congruent sides.

Square

A rectangle with 2 pairs of congruent sides

Rectangle

A rhombus with 4 right angles

Rhombus

A quadrilateral with 4 congruent sides.

Kite

A quadrilateral with 2 pairs of congruent, adajcent sides

POC for Angle Bisectors

Incenter

POC for a median

Centroid

POC for a Perpendicular Bisector

Circumcenter

POC of a Altitude

Orthocenter

Isosceles Triangle

A triangle with at least 2 congruent sides

What is unique about the constructions for an Isosceles Triangle?

The angle bisector is also the perpendicular bisector, altitude, and median. One construction is the same for another.

Linear pair of angles

Two adajcent angles formed by intersecting lines that are supplementary

AIA conjecture

If two parrallel lines are cut by a transversal, then the AIA are congruent

SSIA Conjecure

If two parallel lines are cut by a transversal, then the SSIA are supplementary.

CA Conjecture

If two parallel lines are cut by a transversal, then the CA are congruent

CA converse

If CA are congruent, then the lines they lie on are parallel

SSIA converse

If SSIA are supplementary, then the lines they lie on are parallel.

AIA converse

If AIA angles are congruent, then the lines they lie on are parallel.

Overlapping segments Conjecture

If a line segemtn has points A,B,C,D, and line segment AB is congruent to line segment CD, then line segment AC is congruent to line segment BD