Classifying Polygons

Front

What is a polygon?

Back

A polygon is a closed figure made up of straight line segments. The segments are called sides, and the points where the sides meet are called vertices.

Front

What are the characteristics of a triangle?

Back

A triangle has three sides, three angles, and the sum of its interior angles is always 180 degrees.

Front

What is an isosceles triangle?

Back

An isosceles triangle has at least two sides that are of equal length.

Front

What is a scalene triangle?

Back

A scalene triangle has all sides of different lengths.

Front

What is a right triangle?

Back

A right triangle has one angle that measures exactly 90 degrees.

Front

What is an obtuse triangle?

Back

An obtuse triangle has one angle that measures more than 90 degrees.

Front

What is an acute triangle?

Back

An acute triangle has all angles measuring less than 90 degrees.

Front

What is a quadrilateral?

Back

A quadrilateral is a polygon with four sides.

Front

What is a regular polygon?

Back

A regular polygon has all sides and angles equal.

Front

What is a trapezoid?

Back

A trapezoid is a quadrilateral with at least one pair of parallel sides.