new Garden there are 10 rows and 12 columns of mango trees.the distance between two trees is 2 metres and a distance of one metre is left from all sides of the boundary of the garden .the length of the garden is
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Each row contains 12 plants.
There are 11 gapes between the two corner trees (11 x 2) metres and 1 metre on each side is left.
Therefore Length = (22 + 2) m = 24 m.
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