Mysterious area

The trapezoid ABCD is given. Calculate its area if the area of the DBC triangle is 27 cm2.

Result

S = cm2 (Correct answer is: ?) Wrong answer

Step-by-step explanation:

S1=27 cm2 S1=a h/2  S=a+c2 h c=? S=S1+S2 S=?



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