Question

Trapezium ABCD and ADEF have the same height and the ratio of their areas is 13:14 .

If AD = 10 cm and BC = 16 cm, find the length of EF.

Answer 1

Not sure if you are following convention of labelling vertices.

e.g. I would label ABCD by putting A as the top-left vertex of the trap.
I would then proceed counter-clockwise.

Is AD a common side?
I can't seem to reconcile the given data with my sketch.