Know when to use Pythagoras or Trigonometry to solve problems

Recognise when it is appropriate to use Pythagoras or Trigonometry when finding missing lengths and angles in right angle triangles.

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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!

Q1.

1/3

Q2.A ship sales 15 km on a bearing of 060° from a point P. How far East of its original position is it? Give your answer to 2 decimal places.

2/3

Q3.A plane flies 100 km due east from point A to reach point B. It then flies 30 km due south to reach point C. What bearing is C from A?

3/3

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!

Q1.

1/3

Q2.A ship sales 15 km on a bearing of 060° from a point P. How far East of its original position is it? Give your answer to 2 decimal places.

2/3

Q3.A plane flies 100 km due east from point A to reach point B. It then flies 30 km due south to reach point C. What bearing is C from A?

3/3

Video

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Worksheet

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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 when to use Pythagoras or Trigonometry to solve problems

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

Q1.Would you use Pythagoras or Trigonometry to work out x?

1/3

Q2.Find 𝑥 in the triangle. Give your answer to one decimal places.

2/3

Q3.Which of these could you use to work out x?

3/3

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 when to use Pythagoras or Trigonometry to solve problems

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

Q1.Would you use Pythagoras or Trigonometry to work out x?

1/3

Q2.Find 𝑥 in the triangle. Give your answer to one decimal places.

2/3

Q3.Which of these could you use to work out x?

3/3

Lesson summary: Know when to use Pythagoras or Trigonometry to solve problems

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This was the final lesson in the unit Trigonometry 3.

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