Angle notation and problem solving

In this lesson, you will learn about how to problem solve with angles in polygons, along with learning notations for referring to angles.

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:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.The exterior angles of a hexagon sum to 540 degrees.

1/5

Q2.A triangle ALWAYS has each exterior angle as 60 degrees.

2/5

Q3.The general formula for working out the mean exterior angle of an n-sided polygon is...

3/5

Q4.The calculation to work out the sum of the interior angles for an octagon would be...

4/5

Q5.180n - 360 is a generalisation that tells us the...

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:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.The exterior angles of a hexagon sum to 540 degrees.

1/5

Q2.A triangle ALWAYS has each exterior angle as 60 degrees.

2/5

Q3.The general formula for working out the mean exterior angle of an n-sided polygon is...

3/5

Q4.The calculation to work out the sum of the interior angles for an octagon would be...

4/5

Q5.180n - 360 is a generalisation that tells us the...

5/5

Video

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Worksheet

These slides will take you through some tasks for the lesson. If you need to re-play the video, click the ‘Resume Video’ icon. If you are asked to add answers to the slides, first download or print out the worksheet. Once you have finished all the tasks, click ‘Next’ below.

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:

Angle notation and problem solving

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

Q1.Squares tesselate with each other.

1/5

Q2.Equilateral triangles tesselate with each other.

2/5

Q3.ABC is a triangle. Angle ABC is 90 degrees. Angle BAC is 23 degrees. Angle CAB is...

3/5

Q4.ABC is a triangle. Angle ABC is 90 degrees. Angle BAC is 23 degrees. Angle CBA is...

4/5

Q5.ABC is a triangle. Angle ABC is 90 degrees. Angle BAC is 23 degrees. Angle ACB is...

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:

Angle notation and problem solving

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

Q1.Squares tesselate with each other.

1/5

Q2.Equilateral triangles tesselate with each other.

2/5

Q3.ABC is a triangle. Angle ABC is 90 degrees. Angle BAC is 23 degrees. Angle CAB is...

3/5

Q4.ABC is a triangle. Angle ABC is 90 degrees. Angle BAC is 23 degrees. Angle CBA is...

4/5

Q5.ABC is a triangle. Angle ABC is 90 degrees. Angle BAC is 23 degrees. Angle ACB is...

5/5

Lesson summary: Angle notation and problem solving

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Time to move!

Did you know that exercise helps your concentration and ability to learn?

For 5 mins...

Move around:
Jog

On the spot:
Chair yoga

This was the final lesson in the unit Angles in polygons.

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