# Constructing triangles

In this lesson, you will learn how to construct triangles using a pair of compasses and ruler given the length of the sides. You definitely need a pair of compasses, pencil and ruler for this lesson.

# 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.

# Lesson summary: Constructing triangles

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The next lesson in Constructing triangles and quadrilaterals is "Impossible triangles"