Question

2.
Find the square roots of the following decimal numbers.
(i) 2.56
(ii) 18.49
(iii) 68.89
(iv) 84.64
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Answer 1

Q) Find the square roots of the following decimal numbers.

(i) 2.56

(ii) 18.49

(iii) 68.89

(iv) 84.64

ANSWER:-

$(i) \: 2.56 = 1.6 \times 1.6$

$\sqrt{2.56} = 1.6$

$(ii) \: 18.49 = 4.3 \times 4.3$

$\sqrt{18.49} = 4.3$

$(iii) \: 68.89 = 8.3 \times 8.3$

$\sqrt{68.89} = 8.3$

$(iv) \: 84.64 = 9.2 \times 9.2$

$\sqrt{84.64} = 9.2$