Sunday, November 6, 2011

ABCD is cyclic quadrilateral.if BCD=100,ABD=70.findADB?

Since it is a cyclic quadrilateral,sum of opp. sides is 180.So BAD=180-100=80.In triangle ABD,80+70+ADB=180.So,ADB=180-150=30.
Posted by Tania Shipton at 5:08 PM

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