Geometry Vocabulary

Front

What is a point?

Back

A point is a specific location in space that has no size or dimension.

Front

What is a right angle?

Back

A right angle is an angle that measures exactly 90 degrees.

Front

What does an obtuse angle measure?

Back

An obtuse angle measures greater than 90 degrees and less than 180 degrees.

Front

What is a line?

Back

A line is a straight path that extends infinitely in both directions.

Front

What is a ray?

Back

A ray is a part of a line that starts at a point and extends infinitely in one direction.

Front

What is a segment?

Back

A segment is a part of a line that has two endpoints.

Front

What is an acute angle?

Back

An acute angle is an angle that measures less than 90 degrees.

Front

What is a circle?

Back

A circle is a shape with all points the same distance from its center.

Front

What is a polygon?

Back

A polygon is a closed figure formed by three or more straight line segments.

Front

What is a triangle?

Back

A triangle is a polygon with three sides and three angles.