Question

Find the square roots of the following decimal numbers.(i) 2.56
(ii) 18.49
(iii) 68.89
(iv) 84.64

Answer 1

1st
2.56=1.6*1.6
Therefore squareroot of 2.56 is 1.6.
2nd
18.49=4.3*4.3
Square root of 18.49=4.3
3rd
68.89=8.3*8.3
Therefore square root =4.3
4th
84.64=9.2*9.2
Therefore square root is 9.2

Answer 2

Answer:

(i)  $\sqrt{2.56}=1.6$

(ii)  $\sqrt{18.49}=4.3$

(iii)  $\sqrt{68.89}=8.3$

(iv)  $\sqrt{84.64}=9.2$

Step-by-step explanation:

Given : Some decimal numbers

To find : Square roots of the following decimal numbers :

(i) 2.56 →   $\sqrt{2.56}$ $=1.6$

(ii) 18.49  →   $\sqrt{18.49}$ $=4.3$

(iii) 68.89  →   $\sqrt{68.89}$ $=8.3$

(iv) 84.64 →   $\sqrt{84.64}$ $=9.2$

Therefore, following above are the square roots of the decimal numbers.