Question

find the square root of the following decimal number using division method 21.16​

Answer 1

Resolving 2116 into product of prime,

we get

2| 2116

______

2 | 1058

______

23 | 529

______

23

Now,

√21.16

= √ ( 2116/100)

= √[ (2x2)(23×23)/(10×10)]

= ( 2 × 23 )/10

= 46/10

= 4.6

Therefore,

√21.16 = 4.6