Question

If Each side of a rectangle is doubled.

The ratio between perimeters of the original rectangle and the resulting rectangle is $1:2$

If true then enter $1$ and if false then enter $0$

Answer 1

Let the length of the original rectangle $=l$ cm and breadth $=b$ cm.
Perimeter of the original rectangle $=2(l+b)$
Since, the dimensions of the rectangle are doubled, length of the resulting rectangle $=2l$ cm and breadth $=2b$ cm.
Perimeter of the resulting rectangle $=2(2l+2b)=2\times 2(l+b)$
Ratio of the perimeters of the original rectangle and the resulting rectangle $=2(l+b):2\times 2(l+b)=1:2$