13.(c) in the figure, BA is parallel to DF and CA is parallel to EG and BD = EC. prove that 
(i)BG=DF
(ii)EG=CF

Dear student

Since BD=ECBD+DE=DE+ECBE=DC    ....(1)Since GBDF and GE is their trannsversal.BGE=GOF    [alternate interior angle]    ...(2)and FCEG and FD is their transversalSo, DFC=GOF     [alternate interior angle]    ...(3)So, from (2) and (3), we haveBGE=DFC     ....(4)Since GBDF and BC is their trannsversal.GBE=FDC     [corresponding angles]Now, in GBE and FDCBGE=DFCGBE=FDCBE=DCSo, GBEFDC    [By AAS]BG=DF and EG=CF    [CPCT

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