ಸಮಾನಾಂತರ ಚತುರ್ಭುಜ ABCD ಯ ಸೈಡ್ CD ಯ ಮಧ್ಯ-ಬಿಂದು M ಮೂಲಕ, BM ರೇಖೆಯನ್ನು ಎಳೆಯಲಾಗುತ್ತದೆ, ಛೇದಿಸುತ್ತದೆ

In the adjoining figure, ABCD is a quadrilateral. M and N are the points on AD and CD respectively such that AB = BC, angleABM=angleCBN and angleMBD=angleNBD . Prove that BM = BN .

Through the mid-point M of the side CD of a parallelogram ABCD, the line BM is drawn, intersecting AC in L and AD produced in El. Prove that EL= 2BL

Through the mid-point M of the side CD of a parallelogram ABCD, the line BM is drawn intersecting AC at L and AD produced at E . Prove that EL=2BL.