The Sine Rule (VCE SSCE General Mathematics): Flashcards

Find missing sides/angles in non-right-angled triangles

Two sides + opposite angle OR two angles + one side

Uppercase letters: $A$, $B$, $C$

Side opposite its matching angle (e.g., $a$ opposite $A$)

$\frac{a}{\sin A} = \frac{b}{\sin B} = \frac{c}{\sin C}$

$\frac{\sin A}{a} = \frac{\sin B}{b} = \frac{\sin C}{c}$

Two different triangles from same given information

Two sides and angle NOT between them given

The longest side

$A + B + C = 180°$