Question

If the side of square is tripled how many times the perimeter of the old rectangle will
that of the new rectangle be​

Answer 1

let the side of the square (old rectangle) be x ,

then, it's area = x²

when it is trippled –

then it's side = 3x

therefore ,

its area = (3x)²

= 9x²

hence, the ans. is 9 times !!

hope it helps..uu