# Circle Theorems: A tangent and radius are perpendicular at the point of contact

In this lesson, we will learn that a tangent and radius are perpendicular at the point of contact. We will prove this result with a general case.

# 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:

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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.

# Lesson summary: Circle Theorems: A tangent and radius are perpendicular at the point of contact

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## Time to move!

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

For 5 mins...

Move around:

Walk

On the spot:

Dance