Understanding Heptagons

This video from MooMooMath and Science introduces the heptagon, a seven-sided polygon. It explains the properties of regular heptagons, including equal sides and angles, and how to calculate the sum of interior angles using the formula (n-2)180. The video also covers the number of diagonals in a heptagon, which is 14, and how to find them using the formula n(n-3)/2. Additionally, it explains how to calculate the central angle and area of a heptagon, and discusses irregular heptagons, which do not have equal sides or angles.

What is a heptagon?

• A polygon with 5 sides

• A polygon with 6 sides

• A polygon with 7 sides

• A polygon with 8 sides

Which of the following is true about regular polygons?

• They have curved lines

• They have equal sides and angles

• They have unequal sides

• They are always circles

How many degrees is the sum of the interior angles of a heptagon?

• 720 degrees

• 900 degrees

• 1260 degrees

• 1080 degrees

How many diagonals does a heptagon have?

• 14

• 7

• 9

• 11

What is the measure of the central angle of a regular heptagon?

• 72 degrees

• 60 degrees

• 51.43 degrees

• 45 degrees

What is the formula to find the area of a heptagon?

• Base times height

• Length times width

• Side squared

• 1/2 perimeter times apothem