how do u find the point of intersection of three medians?

Question

without graphing

Answer 1

The name for that point of intersection is the 'centroid'. As for how to find it; it really depends on what you are given. If you just have the equations of the medians, you could solve them, etc.
But theres a much nicer way if you have the coordinates of the vertices of the triangle. The centroid is just the 'average': (x1+x2+x3)/3, (y1+y2+y3)/3.
So if the triangle had coordinates (0,0), (2,0), (3,5), the centroid would be (5/3, 5/3).

Answer 2

You mean for a triangle, I presume. For each of the sides, draw a ray from the midpoint of the side to the angle opposite that side.

Answer 3

if you know the cordinate of vertix(let these are (a,d),(b,e),(c,f)) of triangle then intersection of three medians will be =((a+b+c)/3,(d+e+f)\3)