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Given That: √ 2 = 1 . 414 , √ 3 = 1 . 732 , √ 5 = 2 . 236 and √ 7 = 2 . 646 , Find the Square Roots of the Following: 400 63 - Mathematics

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Question

Given that: 

\[\sqrt{2} = 1 . 414, \sqrt{3} = 1 . 732, \sqrt{5} = 2 . 236 \text{ and } \sqrt{7} = 2 . 646,\]  find the square roots of the following: 

\[\frac{400}{63}\]

Solution

From the given values, we can simplify the expressions in the following manner: 

\[ \sqrt{\frac{400}{63}} = \frac{20}{3\sqrt{7}} = \frac{20}{3 \times 2 . 646} = 2 . 520\]

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Chapter 3: Squares and Square Roots - Exercise 3.8 [Page 57]

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RD Sharma Mathematics [English] Class 8
Chapter 3 Squares and Square Roots
Exercise 3.8 | Q 5.2 | Page 57

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