# Know the trigonometry ratios for 0°, 30°,45°,60° and 90°

In this lesson, we will use an equilateral triangle and an isosceles triangle to work out the exact values for trigonometry ratios for 0°, 30°,45°,60° and 90°

# 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.

#### Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

# Know the trigonometry ratios for 0°, 30°,45°,60° and 90°

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

Q1.Which angles of the trigonometry ratios will this triangle help you to find?

1/3

Q2.Which angles of the trigonometry ratios will this triangle help you to find?

2/3

Q3.Find the missing angle in the triangle below.

3/3

#### Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

# Know the trigonometry ratios for 0°, 30°,45°,60° and 90°

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

Q1.Which angles of the trigonometry ratios will this triangle help you to find?

1/3

Q2.Which angles of the trigonometry ratios will this triangle help you to find?

2/3

Q3.Find the missing angle in the triangle below.

3/3

# Lesson summary: Know the trigonometry ratios for 0°, 30°,45°,60° and 90°

## Time to move!

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For 5 mins...

Move around:
Climb stairs

On the spot:
Chair yoga