الأشكال الرباعية: زوايا المضلع - المضلع المنتظم - حل مسائل

The video tutorial explains how to calculate the interior angles of regular polygons, specifically focusing on octagons and nonagons. It begins by introducing the formula for the sum of interior angles and demonstrates how to apply it to find the angle of a regular octagon. The tutorial then transitions to calculating the interior angle of a regular nonagon, using the same principles. The key takeaway is understanding the method to find individual interior angles of regular polygons by dividing the total sum of angles by the number of sides.

What is the sum of the interior angles of a regular octagon?

• 1440 degrees

• 1080 degrees

• 1800 degrees

• 720 degrees

How do you calculate the measure of one interior angle in a regular octagon?

• Subtract 180 degrees from the sum of interior angles

• Divide the sum of interior angles by 6

• Divide the sum of interior angles by 8

• Multiply the sum of interior angles by 8

Why might regular polygons be used in designing public fountains?

• They are easier to construct

• They provide aesthetic symmetry

• They require less material

• They are more durable

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

• 1440 degrees

• 1260 degrees

• 1080 degrees

• 900 degrees

How do you find the measure of one interior angle in a regular nonagon?

• Divide the sum of interior angles by 9

• Divide the sum of interior angles by 7

• Subtract 180 degrees from the sum of interior angles

• Multiply the sum of interior angles by 9