3. AM is a median of a triangle ABC.
Is ?
(Consider the sides of triangles and .)
As we know that the sum of two sides of ANY triangle is always greater than the third side(Triangles Inequality Rule).
So,
In :
In :
Adding (1) and (2), we get
As we can see M is the point in line BC So, we can say
So our equation becomes
.
Hence it is a True statement.