4th Grade Geometry Vocab

Front

Protractor?

Back

Tool to measure angles.

Front

Lines that cross to form a right angle?

Back

Perpendicular lines.

Front

Lines that never cross and are equidistant?

Back

parallel lines

Front

Type of lines shown?

Back

Perpendicular lines

Front

Image shows:

Back

parallel lines

Front

Two rays with a common endpoint.

Back

Angle

Front

Measurement of an angle?

Back

Degree

Front

90° angle

Back

Right Angle

Front

One endpoint, continues without end through another point.

Back

Ray

Front

Point where two rays meet

Back

Angle Vertex