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下图ABCD是梯形,其中AED是等腰直角三角形.已知梯形的上底(也是等腰直角三角形的斜边)AD长6cm,梯形的面积是35cm~2.求阴影部分(五边形ABCDE)的面积.
The following figure ABCD is a trapezoid, where the AED is an isosceles right triangle. The known bottom of the trapezoid (also the isosceles right-angled triangle’s hypotenuse) AD is 6 cm long and the area of the trapezoid is 35 cm~2. Find the shadow (Pentagonal ABCDE The area of the).