Mathematics for IGCSE & O level - Pythagoras' Theorem And Trigonometry (Section 2 - No. 46)
When is the sine rule used?
When two sides and the included angle is known.
When you have two sides and an angle opposite one of them.
When all three sides are known.
When all three angles are known.
Explicaţie
The sine rule is used to relate the sides of a triangle to the sines of its angles.