Answer:
The length of the side of the original garden is 5 m.
Step-by-step explanation:
Let the original side of the garden be x.
SInce we are given that the side is incresed by 7 m.
So, the new side = x+7
Formula of area of square =
Where x is the side length of square .
So, area of garden after increasing the length of side by 7 =
Since we are given that the new total area of the garden will be
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Thus the length of the side of the original garden is 5 m.