Geometry Terms

Front

The shared endpoint of two rays forming an angle

Back

Vertex

Front

0° < angle measure < 90°

Back

Acute Angle

Front

A point dividing a segment into two congruent segments

Back

Midpoint

Front

Points lying on the same line

Back

Collinear Points

Front

A line through the midpoint of the segment that is perpendicular to it

Back

Perpendicular Bisector

Front

A transformation that takes A to A' ....what is A' ?

Back

Image

Front

A statement you think is true but have not yet proven

Back

Assertion

Front

A statement that has been proven mathematically

Back

Theorem

Front

A reasonable guess that you are trying to either prove or disprove

Back

Conjecture

Front

Two figures that are the same shape and size

Back

Congruent