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Which number on the number line corresponds to \(\sqrt{9.61}\)?

Answer and explanation

Correct answer: 3.1

The principal square root is positive. Since \(3.1^2=3.1\times3.1=9.61\), it follows that \(\sqrt{9.61}=3.1\). Option B is incorrect because \(3.01^2=9.0601\), not \(9.61\). In the exam, verify a decimal square by multiplying the number by itself.

Related tags

PolynomialsNumber LineDecimal Square RootsPerfect Square DecimalsRepresenting Real Numbers On The Number LineMathematicsClass 10 Mcq

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