Geometry

This is an exact location in space

• plane

• point

• line

• parallel lines

This is a straight path of points that goes on and on in opposite directions

• angle

• line

• parallel lines

• point

These are lines that never intersect

• parallelogram

• perpendicular lines

• parallel

  lines

• quadrilateral

An endless flat surface

• plane

• quadrant

• quadrilateral

• perpendicular lines

These are lines that form square corners

• plane

• parallel lines

• acute angle

• perpendicular lines

These are lines that pass through each other at the same point

• perpendicular lines

• parallel lines

• intersecting lines

• line segment

This is a part of a line that has one endpoint and continues forever in one direction

• line segment

• perpendicular lines

• ray

• line

This is a part of a line with two endpoints

• ray

• line

• angle

• line segment

An angle that forms a square corner

• acute angle

• straight angle

• right angle

• obtuse angle

An angle that opens less than a right angle

• acute angle

• right angle

• obtuse angle

• straight angle