Question

A square park has an area of 6561 square meters. If you walk around the park what is the distance that you would have walked?

Answer 1

First we have to find length of 1 side of the square. We can use formula for area of the square. A=a*a   ==>  $A=a^2$ where a is length of the side.
From this formula we can find
$a= \sqrt{A}$
a=$\sqrt{6561} =81 - 1 side$
Now we just have to multiply it by 4, because there are 4 sides.
81*4=324 - its the answer