in a garden there are 10 rows and 12 columns of mango tree.the distance between the two tree is 2 metre and a distance of 1m is left from all side of the boundary of the garden.find the length of the garden.
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total trees=10*12=120
total distance=(119*2+1)m=(238+1)m=239m
total distance=(119*2+1)m=(238+1)m=239m
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