Alternate angles

In this lesson, you will learn how to identify alternate angles, and the equality of alternate angles for parallel lines.

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!

Question 1

Question 2

Question 3

Question 4

Question 5

Q1.The space BETWEEN two lines is called the...

1/5

Q2.The space OUTSIDE two lines is called the...

2/5

Q3.If a third line crosses these two lines, as in the previous questions, this is called the...

3/5

Q4.The point at which two (or more) lines cross is called the...

4/5

Q5.Two lines cross and form an intersection. One of the marked angles is 75 degrees. The vertically opposite angle to 75 degrees would 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:

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!

Question 1

Question 2

Question 3

Question 4

Question 5

Q1.The space BETWEEN two lines is called the...

1/5

Q2.The space OUTSIDE two lines is called the...

2/5

Q3.If a third line crosses these two lines, as in the previous questions, this is called the...

3/5

Q4.The point at which two (or more) lines cross is called the...

4/5

Q5.Two lines cross and form an intersection. One of the marked angles is 75 degrees. The vertically opposite angle to 75 degrees would be...

5/5

Video

Click on the play button to start the video. If your teacher asks you to pause the video and look at the worksheet you should:

  • Click "Close Video"
  • Click "Next" to view the activity

Your video will re-appear on the next page, and will stay paused in the right place.

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:

Alternate angles

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

Question 1

Question 2

Question 3

Question 4

Question 5

Q1.Alternate angles are...

1/5

Q2.A pair of angles at different intersection points with a transversal are called alternate if they…

2/5

Q3.Alternate angles only appear in the interior region.

3/5

Q4.Alternate angles only appear in the exterior region.

4/5

Q5.If I am told two angles are alternate and one angle is 39 degrees, then the other angle will 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:

Alternate angles

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

Question 1

Question 2

Question 3

Question 4

Question 5

Q1.Alternate angles are...

1/5

Q2.A pair of angles at different intersection points with a transversal are called alternate if they…

2/5

Q3.Alternate angles only appear in the interior region.

3/5

Q4.Alternate angles only appear in the exterior region.

4/5

Q5.If I am told two angles are alternate and one angle is 39 degrees, then the other angle will be...

5/5

Lesson summary: Alternate angles

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