4. Shreya lives in a rectangular-shaped house that is 75 m long and 50 m wide. She wishes
to plant trees around it to protect its outer walls from direct sunlight. The trees are to
be planted 3 m apart. How many trees will she need so that they surround the house
completely? (Round off your answer to the nearest whole number.)answer it.
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Answer:
ACCORDING TO GIVEN CONDITION,
LENGTH=75M AND BREADTH=50M
THEREFORE,PERIMETER OF HOUSE =2(75+50)
=2(125)
=250 M
NOW, SHE HAS TO PLANT TREES AT THE DISTANCE OF 3 M APART ,SO
NO. OF TREES=TOTAL PERIMETER/DISTANCE BETWEEN TREES
250/3 =83.3
SO 83 PLANTS WILL BE PLANTED.
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