medians of triangle ABC intersect at G. if ar(triangle ABC) = 27 CM^2, then ar(triangle BGC) =?
maths - MathMate, Thursday, January 3, 2013 at 11:01am
Area of triangle = bh/2
Medians meet at one third from the base, so h'=h/3. Therefore triangles with the vertex at G is one third the area of the whole triangle, or 27/3=9 cm².