Question

how many digits are there in the square root of the following numbers find the answers without actually finding the square root - 841​

Answer 1

Answer:

1 digit

Step-by-step explanation:

as the formula is

n-1/2 (odd number of digit)

or

n/2 (even number of digit)

so it is a odd number of digit

formula = n-1/2

= 3-1/2

= 2/2

= 1 digit (Ans)

Answer 2

Step-by-step explanation:

no. of digits in no. is n

non of digits in 841 =3

3 is a odd no. so our

formula =

n+1/2

3+1/2

4/2

=2 ans

there are 2 digits in its square (29×29 =841)