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2443.2. Parallelogram, elements. Properties and signs.

A parallelogram ABCD is given. It's diagonals cross in a point E.


Write the correct answer!

The perimeter difference between the triangles DAE and AEB is 1.5cm. The perimeter of a parallelogram is 27cm. How long is the side DC?
cm
Grade:
8
Subject
Geometry
Theme
Parallelogram.
Subtheme
Parallelogram, elements. Properties and signs.

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