PreAlg 4.4-4.6 Flashcard

Front

What is a polygon?

Back

A polygon is a closed figure formed by a finite number of straight line segments connected end to end.

Front

What is a decagon?

Back

A decagon is a polygon with ten sides and ten angles.

Front

What is a quadrilateral?

Back

A quadrilateral is a polygon with four sides and four angles.

Front

What is a line in geometry?

Back

A line is a straight one-dimensional figure that has no thickness and extends infinitely in both directions.

Front

What is an empty (or null) set?

Back

An empty set is a set that contains no elements, denoted as {} or ∅.

Front

What is a triangle?

Back

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

Front

What is a hexagon?

Back

A hexagon is a polygon with six sides and six angles.

Front

What is a pentagon?

Back

A pentagon is a polygon with five sides and five angles.

Front

What is a superset?

Back

A superset is a set that contains all the elements of another set.

Front

What is a disjointed set?

Back

A disjointed set is a set that has no elements in common with another set.