Interior Angles and Polygons

The video tutorial explains how to calculate the sum of interior angles in various polygons using the formula (n-2) * 180, where n is the number of sides. It provides examples with triangles and hexagons, demonstrating the calculation process. The tutorial aims to clarify common confusions about the interior angles of different polygons.

What is a polygon?

• A shape with straight sides

• A shape with only one side

• A shape with curved sides

• A shape with no sides

Which of the following is NOT a polygon?

• Pentagon

• Quadrilateral

• Circle

• Triangle

What is the formula to find the sum of interior angles of a polygon?

• n × 180

• (n - 1) × 180

• (n - 2) × 180

• (n + 2) × 180

In the formula (n - 2) × 180, what does 'n' represent?

• The number of diagonals

• The number of sides

• The number of angles

• The number of vertices

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

• 270 degrees

• 360 degrees

• 180 degrees

• 90 degrees

How is the sum of the interior angles of a triangle calculated using the formula?

• 1 × 180

• 4 × 180

• 2 × 180

• 3 × 180

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

• 180 degrees

• 360 degrees

• 540 degrees

• 720 degrees

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

• 540 degrees

• 360 degrees

• 720 degrees

• 900 degrees

How many sides does a hexagon have?

• 6

• 4

• 7

• 5

Using the formula, what is the sum of the interior angles of a hexagon?

• 5 × 180

• 4 × 180

• 3 × 180

• 6 × 180