Answers

2015-09-12T23:41:13+05:30
Ab=bc=34
dc=20 
ac=42
using herons formula  AREA of ΔACD 
√s(s-a)(s-b)(s-c)
√48(48-34)(48-20)(48-42)
√48*14*28*6
=336
AREA of Δabc=336
are of parellepgram abcd =336*2=672
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