In this section i hope to give you an idea about sin rule which is related to plain trigonometry . I have seen that so many students use to call this as a constant but they don't have the proper idea. It should be done even each of every definitions should be known with their geometry. Not only sin rule even we can interpret other geometrical properties of triangles and polygons. Even you guys should be able to derive each of every equations and relationships with geometrical figures. This is shown only for an ordinary triangle but this should be proved for other two sceneries too. Hope you may construct them for others too. That's pretty much easy to derive with projections. Exactly this constant equals to the reciprocal of diameter of it's own circum-circle. It means the constant is unique for the corresponding plain triangle. And also I have tried out to show you how sin ratio can be calculated in terms of sides of triangle. In our old syllabus all these were taught but I would like to ask what happened to them. No need to be framed or trapped in side of a single margin .as well as each of every ratios can be computed. If we could apply s=(a+b+c)/2 expressions can be concluded so far. I just invite you guys to appreciate this. Basic mathematics factors are used.
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