Find the value of each stated unknown in the following right-angled triangles. Give non-exact answers to 3 significant figures.
The legs are 9 cm and 12 cm; find the acute angle \(\alpha\) opposite the 12 cm side.
The hypotenuse is 20 cm and one acute angle is \(35^\circ\); find the opposite side \(b\) and adjacent side \(n\).
The side adjacent to \(25^\circ\) is 10 cm; find the opposite side \(c\) and hypotenuse \(h\).
The hypotenuse is 55 cm and an acute angle is \(50^\circ\); find the adjacent side \(d\) and opposite side \(q\).