Qstnid -A-9- Given: Parallelogram Abcd In Which Diagonals Ac And Bd Intersect At M. Prove: M Is Mid-point Of Ln. - 17: Special Types Of Quadrilaterals Class 8 Maths - Icse-viii-mathematics

Home Learn Fast select Course

Show Unit/Chapter Change Unit Change Subject Last Menu

ICSE-VIII-Mathematics

17: Special Types of Quadrilaterals Class 8 Maths

with Solutions -

Qstn# A-9 Prvs-Qstn Next-Qstn

#9
Given: Parallelogram ABCD in which diagonals AC and BD intersect at M.
Prove: M is mid-point of LN.
Ans :
Proof: Diagonals of //gm bisect each other.
MD = MB
Also ∠ADB = ∠DBN (Alternate ∠s)
& ∠DML = ∠BMN (Vert. opp. ∠s)
∆DML = ∆BMN
LM = MN
M is mid-point of LN.
Hence proved.