I have a garden in the shape of a square with a side length of 0.02 kilometers. The neighbor has a large garden, and we share one side of the garden. I bought from a neighbor's garden that the area of my garden increased to 5 ares.
a/ By how many acres I purchased from the neighbor?
b / how many meters will I move my fence towards a neighbor's garden if I buy it?

Correct answer:

a =  1 a
b =  5 m

Step-by-step explanation:

x=0.02 1000=20 S=x2=202=400 a=5S/102=5400/102=1 a
b=a 102/x=1 102/20=5 m

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