If √10 = 3.162, then √40 = ?
If \(\sqrt{10}\)= 3.162, then \(\sqrt{4 0}\) = ?
A) 6.324
B) 9.486
C) 12.648
D) 31.62
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2 Answers
Correct option is (A) 6.324
\(\because\) \(\sqrt{10}\) = 3.162
\(\therefore\) \(\sqrt{40}=\sqrt{4\times10}\) \(=2\sqrt{10}=2\times3.162\)
= 6.324
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