Question

If length of the rectangular field is doubled of it's breadth and area is 80 cm square find dimensions

Answer 1

let the breadth be x then the length =2x
area =
$2 {x}^{2}$
$80 = 2 {x}^{2} \\ 40 = {x}^{2} \\ x = \sqrt{40}$=2.63......

Answer 2

length is 26.6 and breadth is 13.4