This power point shows how to find the area of a non-right triangle without determining the altitude and instead using trig functions.
There is one example if given a side and two angles. The angles have minutes and need to be converted to decimals.
One example if given all 3 sides.
One example if given 2 sides and one angle.
There is also an example of determining the area of quadrilateral by splitting it up into 2 triangles and using the law of cosines in addition to the area formulas.
All steps and answers are given.