83s
Higher tier only
Know Cosine rule and use it to calculate missing sides in a non-right-angled triangle
Cosine Rule
Formula
Substitute
Square
Square root
Cosine Rule - missing sides
How to use this page
How to use this page
Review the KNOWLEDGE ORGANISER TILE
Watch the MET VIDEO
REVIEW THE 'PRIOR LEARNING' TOPICS (if needed)
COMPLETE QUESTIONS- click on the MyMaths, Corbett Maths or a Memrise quiz
MARK your work
Move onto 'FUTURE LEARNING' TOPICS if you want to see where this topic goes next
Ask your teacher for any help or your mymaths login details if you need them