Introduction:

Click Here for the proof of Cosine Law.

The Sine Law

Click Here for the proof of Sine Law.

Click Here for the proof of Sine Law in terms of Circum-Radius.

The Projection Law

Click Here for the proof of The Projection Law.

The Half-angle Formulae

Click Here for the proof of The Half-angle Formula.The Tangent Law

Click Here for the proof of Tangent Law.

The Area of a Triangle

Click Here for the proof of The Area Of a Triangle.

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