Question

$ABCD$ and $BCFE$ are parallelograms. If area of triangle $EBC=960c{m}^2$ $AB=30cm$ and $BC=40cm$ ; Calculate area of triangle $ECF$.

Answer 1

We know that the diagonal of a parallelogram divides it into two triangles of equal area.

Clearly, EC is the diagonal of parallelogram which divides it into two triangle of equal area viz. triangle EBC and triangle ECF.

Given area of triangle EBC = 960 ${cm}^2$

Therefore, area of triangle ECF = 960 ${cm}^2$.