Law of Sines: Basic Proof

In this video I go over the law of sines in its most common and basic form and prove it using the equation for the area of a triangle but by writing the area of a triangle in 3 different ways using the 3 different sides of the triangle as a base. The formula for the law of sines or sine law is: sinA/a = sinB/b = sinC/c. The more advanced version of the law of sines simply states that the law of sines also equals the diameter of the circumcircle of the triangle. The circumcircle is the circle that can be drawn that has all 3 points of the triangle touching the circle. I will go over this in a later video so stay tuned!

Related Videos:

------------------------------------------------------

[mes]

I don't always go over the law of sines but when I do it's usually in the most common and basic form ;)

[EchoBravoIndia]

Thank you for this video, it helped clarify some things with trig in my geometry class.