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Flip to reveal answersWhen is sine rule typically used?
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All 4 Flashcards — Sine Rule and Cosine Rule
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Question
When is sine rule typically used?
Answer
When you have AAS, ASA, or SSA triangle data.
💡 Hint
Match side-angle opposite pairs.
Question
When is cosine rule typically used?
Answer
When you have SAS or SSS triangle data.
💡 Hint
Great for finding unknown side first.
Question
Cosine rule for side a?
Answer
a^2 = b^2 + c^2 - 2bc cos A
💡 Hint
Angle A is opposite side a.
Question
Ambiguous case in sine rule means?
Answer
SSA data can produce two possible triangles.
💡 Hint
Check if 0, 1, or 2 triangles fit.
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Full study notes for Sine Rule and Cosine Rule
Topic 3.2 hub
2D and 3D trigonometry
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