4. in the adjoining figure, ABCD is aparallelogram in which A=60. If t – InterviewSolution

1.	4. in the adjoining figure, ABCD is aparallelogram in which A=60. If thebisectors of ZA and ZB meet DC at Pprove that (i) <APB = 90°, (ii) AD-DP andPB PC = BC, (iii) DC = 2AD.
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