How to find the measure of one exterior angle given the number of sides ex 1

The video tutorial explains how to find the measure of each interior and exterior angle of a triangle. It covers two methods: one using the sum of exterior angles, which is always 360 degrees, and another using the relationship between interior and exterior angles. The tutorial emphasizes that in regular polygons, all angles are equal, and provides step-by-step calculations for both methods, ensuring learners understand the concepts and can verify their answers.

What is a key characteristic of a regular polygon?

• All sides and angles are equal.

• All angles are different.

• It has more than four sides.

• All sides are different lengths.

What is the sum of all exterior angles of any polygon?

• 720 degrees

• 180 degrees

• 360 degrees

• 540 degrees

How do you calculate the measure of each exterior angle in a regular polygon?

• Add the number of sides to 360 degrees.

• Subtract the number of sides from 360 degrees.

• Divide 360 degrees by the number of sides.

• Multiply the number of sides by 180 degrees.

What is the relationship between an interior angle and its corresponding exterior angle in a polygon?

• They are unrelated.

• They are supplementary.

• They are complementary.

• They are equal.

If an interior angle of a regular triangle is 60 degrees, what is the measure of its exterior angle?

• 120 degrees

• 60 degrees

• 150 degrees

• 90 degrees