Question

Suppose that the area of a square is eight times its perimeter. find the length of a side of the square.

Answer 1

We Know, perimeter of square = 4a
Area of square = a²

Now, A.T.Q, 
8*4a = a²
32a = a²
a²/a = 32
a = 32

So, side should be 32

Hope this helps!