Question

We have subtracted from 121, the successive odd numbers from 1 to 21, and obtained
O in Step 11
. 121 = 11
Worksheet 2
Find the square root of the following numbers by the repeated subtraction method.
(i) 16
(ii) 49
(iii) 64
(iv) 100
(V) 169
(vi) 81
(vii) 256
(viii) 144
Finding Square Root by Prime Factorisation
To find the square root of a perfect square by prime factorisation, we go through the
following steps:
1. Write down the prime factors of the given number.
that both the factore in
chiaro​

Answer 1

Answer:

16=4*4

49=7*7

64=8*8

100=10*10

169=13*13

81=9*9

256=16*16

144=12*12