What is the formula tofind the length of median of triangle?
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In a triangle, a median is the line segment that connects a vertex with the midpoint of the opposite side. Prove that in a triangle with side lengths a, b, and c, the length Mc of the median, drawn to the side with the length c, is equal to Mc = 1/2 * √(2*a^2+2*b^2-c^2)
I have been hinted that I can begin by finding the cosine of the angle opposite to side b. I thought about beginning by trying to find the area of the triangle, but I am not sure if that would work and how I should proceed.
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