MCQ
A square shaped park $ABCD$ of side 100m has two equal rectangular flower beds each of size $10m \times 5m$ Length of the boundary of the remaining park is:
- A$360m$
- ✓$400m$
- C$340m$
- D$460m$
✓
Answer
Correct option: B.
$400m$
In order to find the length of the boundary of the remaining park, we add two flower beds each of length $10m$ and breadth $5m$, then remaining park is shown below:
Now, length of the boundary of the remaining park = Perimeter of remaining park $= (90 + 5 + 10 + 95 + 90 + 5 + 10 + 95)m = 400m$
Now, length of the boundary of the remaining park = Perimeter of remaining park $= (90 + 5 + 10 + 95 + 90 + 5 + 10 + 95)m = 400m$
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