Question

Pleas help
Answer need to be 4
But I don’t no how to do it

Answer 1

Dear,  firstly apply area of triangle in the triangle ABC.  Take half of the area as the medain divides triangle into 2 od eqal areas Then let medain meet BCat D and let its coordinate be D(x, y) again apply the area of triangle in traiangle ACD and put it equal to the half the area of the triangle ABC