neelam has a rectangular shaped house that is 100 feet long and 40 feet wide. she wants to plant trees around her house such that the
trees are 4 feet apart. How many
trees will she need to surround the house?
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Answer:
Length of the house = 100 feet
Breadth of the house = 40 feet
She needs to plant trees around her house, so we need to find the perimeter of the house
Perimeter = 2(l+b)
= 2(100 + 40)
= 2×140
= 280 feet
After each tree she needs to leave 4 feet
ie, for 1 tree she needs 4 feet
For x trees she needs 280/4 feet
ie, x = 280/4 = 70
No.of trees she can plant = 70
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