that didnt really help...i was asking for a solution not a guide on how to search google.
Use a two column proof to show that the centroid of an equilateral triangle divides the inside area into 6 congruent triangles
but sub the dot for a period
2(35 + -42a + a2) use algebrahelp(dot)com/calculators/expression/factoring/
wala KayOng naItuLong!!!!!!