Geometry

Front

What is a right angle?

Back

An angle that measures exactly 90 degrees.

Front

What are perpendicular lines?

Back

Lines that intersect to form a right angle.

Front

What is a line segment?

Back

Part of a line that connects 2 points.

Front

What is a ray?

Back

Part of a line with 1 point and goes on forever.

Front

What is a trapezoid?

Back

A quadrilateral that has ONLY ONE pair of parallel sides.

Front

What is an acute angle?

Back

An angle that measures less than 90 degrees.

Front

What is an obtuse angle?

Back

An angle that measures more than 90 degrees but less than 180 degrees.

Front

What is a straight angle?

Back

An angle that measures exactly 180 degrees.

Front

What is a quadrilateral?

Back

A polygon with four sides.

Front

What is a polygon?

Back

A closed figure made up of straight line segments.