In a school, students thought of planting trees along the boundary of the school to reduce air pollution. It was decided that after every 10 m of boundary one tree should be planted. If the length and breadth of the boundary are 90 m and 70 m respectively, calculate the number of trees will be planted by the students?
Answers
Answered by
11
Answer:
=32 plant respectively.
Step-by-step explanation:
=90+70 × 2 (length +breadth ×2)
=160 × 2
= 320/10
= 32.
Answered by
7
Answer:
here,
student planted a trees at a distance =10m
region around one plants take=10m× 10m
100m2
then,
area of rectangular boundary
= l×b
={90×70}
=6300m2
hence
no. of trees plant= area of boundary/ area taken
one tree
= 6300m2/100m2
=63trees
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