
A real world problem using the formula of perimeter and area

Answer to Problem 25HP
A rectangular park requiring fertilizers and fencing
Explanation of Solution
Consider a rectangular park having length = 20m and width = 10m
It is required to put the fencing across the park to protect it from outside animals. Therefore, the length of the fencing can be estimated by the help of the perimeter formula as:
The length of the fencing = Perimeter of the park
A 60 meter wire will be required.
It is known that 1 bag of fertilizers can cover up to 20 meter square of area. To know the amount of bag required, the area formula is applied as:
Bags required will be
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