Interior Angles and Polygons

The video tutorial covers the properties of polygons, focusing on calculating the sum of interior and exterior angles. It introduces the concept of polygons, explains the formula for finding the sum of interior angles, and provides examples with different polygons. The tutorial also discusses naming conventions for polygons and concludes with the concept of exterior angles, emphasizing that the sum of exterior angles is always 360 degrees.

What is the prefix 'poly' in polygons indicative of?

• Single

• None

• Few

• Many

How many triangles can be formed in a pentagon by drawing diagonals from one vertex?

• 3

• 4

• 5

• 2

What is the sum of the interior angles of a hexagon?

• 540 degrees

• 720 degrees

• 1080 degrees

• 900 degrees

What is the sum of the interior angles of a heptagon?

• 1080 degrees

• 1260 degrees

• 900 degrees

• 720 degrees

Which formula is used to calculate the sum of interior angles of a polygon?

• (n-2) x 180

• (n+2) x 180

• n + 180

• n x 180

What is the sum of the interior angles of a 22-sided polygon?

• 3240 degrees

• 3600 degrees

• 3960 degrees

• 4320 degrees

What is the sum of the interior angles of a quadrilateral?

• 180 degrees

• 270 degrees

• 360 degrees

• 450 degrees

What is the sum of the interior angles of a decagon?

• 1440 degrees

• 1620 degrees

• 1800 degrees

• 1980 degrees

What is the sum of the interior angles of a nonagon?

• 1800 degrees

• 1260 degrees

• 1440 degrees

• 1620 degrees

What is a 12-sided polygon called?

• Dodecagon

• Hendecagon

• Decagon

• Tridecagon