ABCD is a rectangular trapezoid with large base BC=8, small base AD=6 and height 4.
The area of trapezoid ABCD is:
The yellow trapezoid is similar to trapezoid ABCD, the proportionality ratio is k=0.5.[br]The area of A'BC'D' is
The green trapezoid is similar to trapezoid A'BC'D' , the proportionality ratio is k=0.5.[br]The area of A"BC"D" is