(2) Breadth of rectangle= x metre (let). ∴ Its length = (x + 2) metre According to the question, Area of rectangle = 195 sq. metre ⇒ x (x + 2) = 195 ⇒ x (x + 2) = 13 × 15 ⇒ x (x + 2) = 13 × (13 + 2) ⇒ x = 13 metre ∴ Side of square = (x + x + 2) metre = (2x + 2) metre = (2 × 13 + 2) metre = 28 metre ∴ Diagonal of square =√2× side = 28√2 metre