Solving nonright triangles
 Case 1: knowing one side and its adjacent angles.
Example: a = 6,4 B = 55^{0} C = 82^{0}
 Case 2: two sides and an angle that is opposite one of them.
Example: a = 6,2 b = 7,4 A = 48^{0 }
 Case 3: two sides and the angle between them.
Example:a = 5,6 b = 4,7 C = 69^{0}
 Case 4: all three sides.
Example: a = 7,3 b = 6,2 c = 5,4
Example: two high power towers, A and B, have a lake between them. We use an auxilar point, C, to measure the distance between them and we obtain that AC = 33 metres, BC = 45 metres and the angle C = 73^{0}. Calculate the distance between the towers.

Exercises:
1. In 1977, men threw into space a probe for planetary research, called Voyager 2. After navigating across space for two years, it got to Jupiter's system. In that moment, the Voyager 2 was 500·10^{6} km away from Earth. The distance from Jupiter to Earth was 628.8·10^{6} km, and the angle between the observation directions of the planet and the space probe was 10^{o}. Calculate the distance that there was between the Voyager and Jupiter.
2. From a point A we can see other two, B and C, with an angle of 52^{o}29'. We know that the distance between B and C is 450 m, and between A and B is 500 m . Find out the distance between A and C.
Solutions: 1) 161.69·10^{6} km; 2) 517.14 m
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