Geometry Review

Front

What is an obtuse angle?

Back

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

Front

What is a polygon?

Back

A polygon is a closed figure made up of straight line segments. It has at least three sides.

Front

Why is a circle not a polygon?

Back

A circle is not a polygon because it has no sides or angles.

Front

What kind of triangle has one angle greater than 90 degrees?

Back

An obtuse triangle has one angle that is greater than 90 degrees.

Front

What are the parts of an angle?

Back

An angle is made up of two rays that share a common endpoint.

Front

What is a right angle?

Back

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

Front

What is an acute angle?

Back

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

Front

What is the sum of the angles in a triangle?

Back

The sum of the angles in a triangle is always 180 degrees.

Front

What is a vertex in geometry?

Back

A vertex is a point where two or more lines or edges meet.

Front

How many sides does a quadrilateral have?

Back

A quadrilateral has four sides.