Sinuslar va kosinuslar teoremasi

$AC \perp AB$; $AB = 4$; $\angle ABC = 45^{\circ}$; $BC = x = ?$ $AC \perp AB$; $AC = 6$; $\angle ABC = 45^{\circ}$; $BC = x = ?$ $AC \perp AB$; $BC = 12$; $\angle ABC = 45^{\circ}$; $AC = x = ?$ $AC \perp CB$; $AB = 16$; $\angle CAB = 45^{\circ}$; $AC = x = ?$ $AC \perp CB$; $AC = 4$; $\angle CBA = 30^{\circ}$; $AB = x = ?$ $AC \perp CB$; $AC = 6$; $\angle CBA = 30^{\circ}$; $AB = x = ?$