Challenge Question
How do we know which trigonometric rule to use?
How do we know which trigonometric rule to use?
Learning Targets
Beginning
Understand how to use Trigonometry with to solve problems with right-angled triangles including solving puzzles in 3D.
Understand how to use Trigonometry with to solve problems with right-angled triangles including solving puzzles in 3D.
Developing
To to able to use the Sine and Cosine Rules to find the missing side or angle in any triangle.
Mastering
Use Trigonometry to find the area of a triangle.
Resources
This lesson is designed to help you identify which trigonometric rule to use when solving puzzles involving triangles.
You often know how to use these rules in isolation however many of you find it hard to identify which rule to use in the first place.
This lesson is designed to help you identify which trigonometric rule to use when solving puzzles involving triangles.
You often know how to use these rules in isolation however many of you find it hard to identify which rule to use in the first place.
Starter
Download a copy of this diagram here: Which trigonometric rule do I use?
Sort these questions, workings, formula and answers.
Beginning
This section is designed to help you challenge yourself to fully understand the use of SOHCAHTOA (remember you need to memorise SOHCAHTOA for the exam).
Video help: Intro to Trigonometry, Tan Function, Sin and Cos Function
Sort these questions, workings, formula and answers.
Beginning
This section is designed to help you challenge yourself to fully understand the use of SOHCAHTOA (remember you need to memorise SOHCAHTOA for the exam).
Video help: Intro to Trigonometry, Tan Function, Sin and Cos Function
Developing
This section is designed to help you challenge yourself to fully understand the use of the Sine and Cosine Rules (remember these rules will be given to you in the exam).
Videos: Sine and Cosine Rules
This section is designed to help you challenge yourself to fully understand the use of the Sine and Cosine Rules (remember these rules will be given to you in the exam).
Videos: Sine and Cosine Rules
Work through the standard Sine and Cosine questions at your own pace - skipping questions to challenge yourself.
As quick as possible move onto the mixed questions and real world puzzles.
As quick as possible move onto the mixed questions and real world puzzles.
Once you fully understand SOHCAHTOA and the Sine and Cosine Rules this section is designed to help you challenge yourself to fully understand how to find the area of any triangle (remember you need to memorise SOHCAHTOA for the exam).
Homework
MyMaths (A-A* Boosters)
