Answer :
First of all you need to find what number squared gives 1.21
So to make it easier first you find which number squared gives 121, ( you simply multiply 1.21 by 100)
After you find that number which is 11 you got to divide it by 10( since 10 square is 100)
The final answer is 1.1
So to make it easier first you find which number squared gives 121, ( you simply multiply 1.21 by 100)
After you find that number which is 11 you got to divide it by 10( since 10 square is 100)
The final answer is 1.1