No more right triangle :(

Now we don't get right triangles as often anymore. We can no longer use the short cut of SOHCAHTOA. Now we have to use either the law of sines or the law of cosines. You can only use the law of sines if you have a matched pair of an angle and a side. If you do not you must use the law of cosines. These two formulas are extremely useful.

The equation for law of sines is: Sin(angle)   Sin(angle2)
                                                  opp leg  =opp leg 2
                                         This equation is used by plugging in and cross multiplying

The equation for Law of Cosines is:
      (opp leg)^2=(adj leg)^2+(adj leg2)^2-2(adhleg)*(adj leg)*cos(angle between)

Now I don't know who sits around and tries to figure out this stuff but they obviously had a good reason to do it. They must have expected this to be used.