Identifying 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 is a pentagon?

Back

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

Front

What is a quadrilateral?

Back

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

Front

What is an octagon?

Back

An octagon is a polygon with eight sides and eight vertices.

Front

What is a heptagon?

Back

A heptagon is a polygon with seven sides and seven vertices.

Front

What is a triangle?

Back

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

Front

What are the types of triangles based on angles?

Back

The types of triangles based on angles are: Acute (all angles less than 90°), Right (one angle is exactly 90°), and Obtuse (one angle is greater than 90°).

Front

What is an obtuse triangle?

Back

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

Front

What is an acute triangle?

Back

An acute triangle is a triangle where all three angles are less than 90°.

Front

What is a scalene triangle?

Back

A scalene triangle is a triangle where all three sides are of different lengths.