A nursery school play ground is 160 m long and 80 m wide. In it 80 m x 80 m is kept
for swings and in the remaining portion, there is 1.5 m wide path parallel to its width
and parallel to its remaining length as shown in Fig. 2. The remaining area is covered
by grass. Find the area covered by grass.
Answers
Answered by
8
Area of school playground is
160 m × 80 m = 12800 m2
Area kept for swings
= 80 m × 80 m = 6400 m2
Area of path parallel to the width of playground
= 80 m × 1.5 m = 120 m2
Area of path parallel to the remaining length of playground
= 80 m × 1.5 m = 120 m2.
Area common to both paths
= 1.5 m × 1.5 m = 2.25 m2.
[since it is taken twice for measuerment it is to be subtracted from the area of paths]
Total area covered by both the paths
= (120 + 120 – 2.25) m2 = 237.75 m2.
Area covered by grass = Area of school playground – (Area kept for swings + Area covered by paths)
= 12800 m2 – [ 6400 + 237.75] m2 = (12800 – 6637.75) m2
= 6162.25 m2.
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Answered by
5
Answer:
6162.25
Step-by-step explanation:
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