Option C. We need to put 120 yards of fence around the pool.
Given that, The length and breadth of the rectangle pool are 40 and 20 yards.
We need to put fence around the pool. The measure of the fence will be equal to the perimeter of the pool. The formula for the perimeter of the rectangle is
Here l is the length; b is the breadth.
On substituting the values, we get the perimeter of the rectangle.
Therefore, Perimeter .
So, we need to put 120 yards of fence around the pool.
The dimensions of the fence are three times pool's ones, i.e. 180 and 90.
You need (180 + 90)×2 = 540
i'm assuming it's looking for the missing length, which should be 4cm
hope this !
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