Q: 6 Diagonal AC of a parallelogram ABCD bisects (see Fig. ). Show that it bisects also.
Given: DAC=BAC ................1
DAC=BCA.................2 (Alternate angles)
BAC=ACD .................3 (Alternate angles)
From equation 1,2 and 3, we get
ACD=BCA...................4
Hence, diagonal AC bisect angle C also.