4th Grade Geometry Vocabulary

Front

a straight path that extends in both directions with no end

Back

line

Front

a line with two end points

Back

line segment

Front

A line with a starting point but no end point, continuing in one direction.

Back

ray

Front

Lines that never intersect and are always an equal distance apart.

Back

parallel lines

Front

two things used together

Back

pair

Front

left to right side to side

Back

horizontal

Front

up and down top to bottom

Back

vertical

Front

an IMAGINARY line that divides a shape into two identical halves the two halves are a reflection of each other...they are a mirror image

Back

symmetry

Front

Lines that intersect (or meet) that make right angles.

Back

Perpendicular lines

Front

The space inside the vertex (or the point)

Back

angle