Geometry Terms 4th grade

Front

What is a part of a line with one endpoint that continues without end in one direction?

Back

Ray

Front

What do you call a four-sided polygon?

Back

Quadrilateral

Front

What is an angle that measures 180 degrees?

Back

Straight angle

Front

What is an angle that is less than 90 degrees?

Back

Acute angle

Front

What is an angle that measures more than 90 degrees but less than 180 degrees?

Back

Obtuse angle

Front

What do you call a closed figure made up of three or more line segments?

Back

Polygon

Front

What is a line that goes on forever in both directions?

Back

Line

Front

What do you call a part of a line that has two endpoints?

Back

Line segment

Front

What is an angle that measures exactly 90 degrees?

Back

Right angle

Front

What do you call a quadrilateral with opposite sides that are equal and parallel?

Back

Parallelogram