Mathematics for IGCSE & O level - Pythagoras' Theorem And Trigonometry (Section 2 - No. 43)
In the context of non-right-angled triangles, which rule(s) is/are used for finding lengths and angles?
Sine rule
Cosine rule
Pythagorean theorem
SOH CAH TOA
คำอธิบาย
The Sine rule and Cosine rule are used to solve non-right-angled triangles.