proof that if a number is doubled then its square becomes four times the square of given number

proof that if a number is doubled then its square becomes four times t

1.	proof that if a number is doubled then its square becomes four times the square of given number
Answer» Let the number be : aIts square is : a^2Then, double it 2aAnd square of 2a will be 4a^2 And a^2 was the square of that number soHence proved