Two identical right-angled triangles overlapped each other as shown in the diagram below. Find the area of the shaded part.
3.5 x 11 = 38.5 (Area of Parallelogram ABCD)
1/2 x 3.5 x 5 = 3.85 (Area of Trianlge ADE)
38.5 - 3.85 = 29.75 cm2
The area of the shaded part is 29.75 cm2.
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