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in Number System by (38.9k points)
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√7 = 2.65 (approximately), then the approximate value of\(\sqrt{28}\) is 

A) 2.65

B) 5.3 

C) 7.95 

D) 10.6

2 Answers

+1 vote
by (57.0k points)
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Best answer

Correct option is (B) 5.3

\(\sqrt{7}\) = 2.65

\(\therefore\) \(\sqrt{28}=\sqrt{4\times7}=2\sqrt7\) \(=2\times2.65=5.3\)

+1 vote
by (36.7k points)

Correct option is  B) 5.3

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