1. In right triangle ABC with the right angle at C, find angle A rounded to the nearest tenth of a degree if side a measures 45.6" and side b measures 58.1".
2. In right triangle ABC with the right angle at C, find angle B to the nearest tenth of a degree if side b measures 21.5" and the hypotenuse measures 67.8".
3. In right triangle ABC with the right angle at C, find side b to the nearest tenth of a centimeter if angle A is 52.2 and the hypotenuse measures 16.4 centimeter.