Earth wants to plant trees around the past having dimensions 90 m by 120 m. If he wants to keeps distance of 3m between two trees, then how many saplings does he need?
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Answer:
Step-by-step explanation:
Area of total land = l x b
= 120 x 90
= 10800m^2
Area required for each sapling= s x s
= 3 x 3
= 9 m^2
No. Of saplings = 10800/9
= 1200
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