https://foxoyo.com/mcq/10779/the-perimeter-of-a-square-is-thrice-the-perimeter-of-a-rectangle-if-the-perimeter-of-the-square-is-84-cms-and-the-length-of-the-rectangle-is-8cms-what-is-the-difference-between-the-breadth-of-the-rectangle-and-the-side-of-the-square