The Maths Habit

Finding a side with cos

Trigonometry · Foundation and Higher · 5:08

Chapters

  1. 0:00Introduction
  2. 0:18Do Now
  3. 0:57The adjacent side
  4. 1:19CAH: the cos ratio
  5. 1:43Example 1: finding the adjacent
  6. 2:20Example 2: finding the hypotenuse
  7. 3:09Your turn
  8. 3:41Common mistake
  9. 4:13Worksheet and exit question

Practise finding sides with cos for 15 minutes a day in The Maths Habit, on your phone or in your browser.