Question

 If a fraction multiplied by itself yields 100/9, then that number is? 
please answer correctly ​

Answer 1

Step-by-step explanation:

In mathematics, we call multiplying a number by itself “squaring” the number. We call the result of squaring a whole number a square or a perfect square. A perfect square is any number that can be written as a whole number raised to the power of 2.

Answer 2

Step-by-step explanation:

111,111,111

simple logic for this is :-

for example

11*11=121 (11 is 2 one’s so from 1 till 2 and back )

111*111 =12321 (111 is 3 one’s so count from 1 till 3 and back ) that is 1 2 3 and back 2 1

similarly for 12345678987654321 =111,111,111(9 one’s) *111,111,111