The square root of 0.49 is:
A{'text': '0.07'}
B{'text': '0.7'}
C{'text': '7'}
D{'text': '0.49'}
Answer & Solution
Correct answer: B. {'text': '0.7'}
1. Write 0.49 = 49/100.
2. √(49/100) = √49 / √100 = 7/10 = 0.7.
3. Verification: 0.7 × 0.7 = 0.49 ✓.
4. Hence √0.49 = **0.7**.
_Source: Selina Concise ICSE Class 8 Mathematics Ch 3 "Squares and Square Roots", Square roots of decimals_
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