Geometry unit 1 vocab

Front

Describe a point.

Back

an exact location; a coordinate; a small dot

Front

Describe a line.

Back

A straight path that goes on forever in two opposite directions.

Front

Part of a line with two endpoints and all points in between.

Back

segment

Front

Part of a line with one endpoint extending in one direction.

Back

ray

Front

Points on the same line are called

Back

collinear

Front

Points/lines on the same plane are called

Back

coplanar

Front

Coplanar lines that do not intersect are

Back

parallel lines

Front

Coplanar lines that intersect at right angles are

Back

perpendicular lines

Front

Angle > 0 and < 90

Back

acute angle

Front

Angle measuring 90°

Back

right angle