Area, Sine, and Cosine Rules (Grade 11 NSC Matric Mathematics): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What info is needed to use the area rule?
What info is needed to use the area rule?
Two sides and included angle
What is the included angle?
What is the included angle?
Angle between two known sides
Which formula represents the area rule?
Which formula represents the area rule?
Area =
When should you use the sine rule?
When should you use the sine rule?
Two angles and one side known
What does show?
What does show?
Ratio of side to sine opposite angle
When does the ambiguous case occur?
When does the ambiguous case occur?
Two sides, non-included angle given
When should you use the cosine rule?
When should you use the cosine rule?
All three sides known
What does the cosine rule become when angle = 90°?
What does the cosine rule become when angle = 90°?
Pythagoras' theorem
Given two sides and included angle, which rule finds the third side?
Given two sides and included angle, which rule finds the third side?
Cosine rule