Regular interior and exterior angles (and mean of irregular)

In this lesson, we will learn how to calculate the mean interior and exterior angles of n-sided polygons, and solve problems based on these formulae.

Video

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Worksheet

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This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Regular interior and exterior (and mean of irregular)

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Q1.The mean interior angle of a quadrilateral is...

1/5

Q2.The mean exterior angle of a pentagon is...

2/5

Q3.If I have a regular polygon with an exterior angle of 5 degrees, how many sides does my polygon have?

3/5

Q4.A square would have both an interior and exterior angle of 90 degrees

4/5

Q5.If I had a shape with 180 sides, what would the mean exterior angle be?

5/5

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Regular interior and exterior (and mean of irregular)

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Q1.The mean interior angle of a quadrilateral is...

1/5

Q2.The mean exterior angle of a pentagon is...

2/5

Q3.If I have a regular polygon with an exterior angle of 5 degrees, how many sides does my polygon have?

3/5

Q4.A square would have both an interior and exterior angle of 90 degrees

4/5

Q5.If I had a shape with 180 sides, what would the mean exterior angle be?

5/5

Lesson summary: Regular interior and exterior angles (and mean of irregular)

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