Interior Angles and Polygon Properties

This video tutorial from YourTeacher.com explains how to find the measure of each interior angle of a regular polygon with 15 sides. It introduces the formula for calculating interior angles, demonstrates the step-by-step calculation process, and provides tips for using a calculator to solve similar problems.

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• To debate

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How many sides does the polygon in the problem have?

• 20

• 15

• 12

• 10

What is the first step in solving the problem of finding the interior angle?

• Using the formula

• Drawing the polygon

• Counting the sides

• Measuring the angles

What is the formula used to find the measure of each interior angle of a regular polygon?

• 90 * n - 2 / n

• 180 * n - 2 / n

• 360 / n

• 180 / n

What is the importance of the number 180 in the formula?

• It represents the sum of angles in a triangle

• It is the number of sides

• It is the number of vertices

• It is the number of diagonals

In the formula 180 * n - 2 / n, what does 'n' represent?

• The number of diagonals

• The number of vertices

• The number of sides

• The number of angles

What is the result of substituting 15 into the formula for 'n'?

• 180 * 15 / 2

• 180 * 15 / 13

• 180 * 2 / 15

• 180 * 13 / 15

What operation is performed after substituting 15 into the formula?

• Subtraction

• Multiplication

• Division

• Addition

What is the result of 15 - 2 in the formula?

• 10

• 14

• 12

• 13