User:Shyal-b/Edexcel C2 Solutions

$x = 180-(30+120) \,$

$x = 30\,$

$\frac {z}{\sin30} = \frac {20}{\sin120}$

$z = \frac {20*sin30}{\sin120}$

$z = 11.5\,$

$\frac {y}{\sin(30)} = \frac {20}{\sin120}$

$y = \frac {20*\sin(30)}{\sin(120)}$

$y = 11.5\,$

$x = 30\,$

$y = 11.5\,$

$z = 11.5\,$