Finding a side with cos
Chapters
- 0:00Introduction
- 0:18Do Now
- 0:57The adjacent side
- 1:19CAH: the cos ratio
- 1:43Example 1: finding the adjacent
- 2:20Example 2: finding the hypotenuse
- 3:09Your turn
- 3:41Common mistake
- 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.