1. Answer the following questions ;-
8. In a trapesium A B C D CE is Parallel to AD
1. Is the quadrilateral AECD is a Parlellogram
2. calculate the area of quadrilateral AECD
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1. The shape of quadrilateral ABCD changes as the moving platform swings around, but its side lengths do not change. Both pairs of opposite sides are congruent, so ABCD is a parallelogram by the Parallelogram Opposite Sides Converse. By the definition of a parallelogram, — AB — DC .
2. If the diagonal and the length of the perpendiculars from the vertices are given, then the area of the quadrilateral is calculated as: Area of quadrilateral = (½) × diagonal length × sum of the length of the perpendiculars drawn from the remaining two vertices.
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