maths.com - Geometry - Polygons

Geometry
Polygons

Classifying Polygons By The Number Of Sides

Similar Polygons

Congruent Polygons

Interior Angle Of A Polygon

Exterior Angle Of A Polygon

Concave Polygon

Regular Polygons

Calculate The Size Of The Exterior Angle Of A Regular Polygon
When We Know The Number Of Sides

Calculate The Number Of Sides Of A Regular Polygon
When We Know The Size Of The Exterior Angle

Calculate The Size Of The Interior Angle Of A Regular Polygon
When We Know The Number Of Sides

Calculate The Sum Of The Interior Angles Of A Convex Polygon
When We Know The Number Of Sides

External Link MathWorld - Very Advanced

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What is a polygon?

A flat shape with straight sides.

A 2D shape with straight sides.

A plane shape with straight sides.

Created by Dr David Cornelius an Independent Private Maths Tutor with over 25 years of experience and The Secretary of The Association of Tutors in the UK for 15 years.