An arrangement of marbles has 12 marbles in the first row and 10 rows in all. In each successive row one marble is added.
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we know that
A half-acre is equal to---------->
Let
x---------> the length side of the building lot
y--------> the width side of the building lot
A------> Area of the building lot
x=5y-------> equation 1
--------> equation 2
substitute equation 1 in equation 2
<u>Find the value of x</u>
therefore
<u>the answer is</u>
the dimensions of the building lot are 100.55 m* 20.11 m