Geometry Word Bank

Alternate exterior angle theorem

Angles formed by the alternate sides of a transversal

Alternate exterior angles

Angles formed when a transversal intersects between at least 2 parallel lines

Angle bisector

A Line, Ray, or Segment that intersects an angle into 2 equal parts

Biconditional

A if-then conditional statement that is only true if both the conditional (p then q) and the converse (q then p) are both correct

Colinear points

Points that are on the same line in the same direction on a Line,Segment,Ray, or plane

Complementary

Any two angles that have a total sum of 90 degress.

Congruent

Any two things that have an equal measure

Conjecture

An educated guess using patterns or scattered proofs to come to a conclusion.

Contrapostive

The negated opposite of the converse (if not q then not p)

Converse

The flipped opposite of the conditional ( if q then p)

Corresponding Angles

Angles formed when two lines are intersected by a transversal. On the same side, but near each intersection of a parallel line.

Counterexample

A statement or conjecture that proves it’s opposing statement wrong.

Dilation

A transformation in space that involves the enlargement or reduction of the lines or planes in space.

Distance

The space between two or more points in space

Inverse

The negation of the conditional (if not p then not q)

Linear Pair

Two ajdacent angles that are supplementary ( equal 180 degress)

Logically valid statements

Conditional=Contrapositive Converse=Inverse

Midpoint

The point that joins two or more points together to create bisectors or angles.

None/no relation

Two terms that have different statements and aren’t related.

Obtuse

An angle that has a measure larger than 90 degress.

Paralell

A Set of 2 or more lines that will never intersect in space.

Perpendicular

A set of two more lines that intersect to form only 90 degrees in space.

Plane

A set of any three or more noncolinear points

Point Symmetry

When an object/plane in space has the same look rotated 180 degrees.