Topic: Using Trigonometry to find sides

Here are the stages:

  1. Label the sides (Practice Blooket HERE!)
  2. Decide if you are using Cos, Tan or Sin (Practice Blooket HERE!) or how-to decide film: HERE
  3. Use the formula from the formula sheet
  4. Write down the formula putting in the numbers
  5. Use your calculator to get the answer

Here is the formula sheet:

Games to play

  • Blooket: labelling the sides of a triangle: HERE!
  • Blooket: should I use sin, cos or tan? HERE

Some Examples

Here is Chris doing some examples

Practice 1 – Here are some practice questions

Practice 2 – Here are some GCSE questions

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