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Step-by-step explanation
ADBE is parallelogram
AB=DE
AD=BE
EC=25-BE=15
Value of S for ΔDEC = 13+14+15/2 = 21
Area=√s(s-a)(s-b)(s-c) =√21*8*7*6 =84 Unit^2
now,
Area of ABDE =10*10.8 = 108 Unit^2
Then,
Total Area =108 +84 =192 Unit^2.
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