Know tangent, sine and cosine

In this lesson, we will learn how to correctly label a right-angled triangle, and identify the correct trigonometric ratio to use.

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:

Know tangent, sine and cosine

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

Q1.Has this triangle been correctly labelled?

1/4

Q2.Why has this triangle been incorrectly labelled?

2/4

Q3.Which is the correct trigonometric ratio to use to calculate length y?

3/4

Q4.Which trig ratio would I use to calculate the diameter of the circle?

4/4

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:

Know tangent, sine and cosine

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

Q1.Has this triangle been correctly labelled?

1/4

Q2.Why has this triangle been incorrectly labelled?

2/4

Q3.Which is the correct trigonometric ratio to use to calculate length y?

3/4

Q4.Which trig ratio would I use to calculate the diameter of the circle?

4/4

Lesson summary: Know tangent, sine and cosine

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Time to move!

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