Question

What is the length of a side now​

Answer 1

what is the length of a side now is C 4

Answer 2

Answer:

4m

Step-by-step explanation:

let the length of sq garden be x, ar of sq = x²

then, length of new rect(l) = x+3

breadth(b)= x+1

ar of rect = lb = (x+3)(x+1) = x²+4x+3

now ATQ,

x² + 19 = x²+4x+3

=> 19=4x+3

=>4x=16

=>x=4