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To find area, any side of a parallelogram can be chosen as _________ of the parallelogram.

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Area of the square MNOP of Fig. 9.24is 144 cm². Area of each triangle is_______.

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In Fig. 9.25, area of parallelogram BCEF is ________cm² where ACDF is a rectangle.

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Perpendicular dropped on the base of a parallelogram from the opposite vertex is known as the corresponding _________ of the base.

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The distance around a circle is its _________.