Question

Each side of a rectangle is doubled. Find the
ratio between :
(i) perimeters of the original rectangle and
the resulting rectangle​

Answer 1

Step-by-step explanation:

let l & b be the length & breadth of rectangle

then perimeter = 2*(l+b)

now if both length & breadth is doubled then new perimeter will be

= 2*(2l+2b) = 2*2*(l+b)

if we take ratio of original & new perimeter, we get

{2*(l+b)}/2*{2*(l+b)} = 1/2