Question

By mere observation, find the number of
digits in the square roots of the following
numbers.
(i) 14,641
(ii) 3,90,625
(iii) 3136
(iv) 30,625

Find the square roots of the following
numbers by long division method.
(i) 21,609
(ii) 2,45,025
(iii) 39,204
(iv) 14,641

Find the square roots of the following
numbers correct to two decimal places.
(1) 2 (ii) 7 (1) 3 (iv) 12
​

Answer 1

Answer:

Step-by-step explanation:

(i) 14,641    =  1 46 41   - 3 digits in square root

(ii) 3,90,625   = 39 06 25   - 3 digits in square root

(iii) 3136   = 31  36  - 2 digits in square root

(iv) 30,625  = 3 06 25   - 3 digits in square root

       147

 1     21609

        1

24     116

          96

287     2009

           2009

           

Similarly others can be found

√2 = 1.41

√7 = 2.64

√3 = 1.73

√12 = 3.46