in a qaudrilateralABCD, P, Q, R, S ARE THE MID POIUNT OF THE SIDE AB, AD, CD & BC RESPECTIVELY, PROVE BY VECTOR METHOD THAT PR & QS BISECT EACH OTHER
in a qaudrilateralABCD, P, Q, R, S ARE THE MID POIUNT OF THE SIDE AB, AD, CD & BC RESPECTIVELY, PROVE BY VECTOR METHOD THAT PR & QS BISECT EACH OTHER