In trapezoidal ABCD, ad: BC = 2:3, the area of triangle AOB is 6 square centimeters, and what is the area of trapezoidal ABCD A D O B C

AOB area is equal to cod area,
AOB area: AOD area = Bo: do = BC: ad = 3:2,
AOB area: BOC area = Ao: CO = ad: BC = 2:3,
So the area of ABCD is 6 + 6 + 4 + 9 = 25

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