Two poles of heights 3 metres and 2 metres are erected up on thè ground and ropes are stretched from the top of each to the foot of the other.'(##VPU_HSS_MAT_IX_C07_E01_005_Q01##)'
i)' At what height above the ground do the ropes cross each other?
ii) Prove that this height would be the same, whatever be the distance between the poles.
ii) Taking the heights of the poles as a and 'mathbffb' and height above the ground of the point where the ropes cross each other, as,'h', find the relation between 'mathbffa, underlineb' and 'h'.