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Question
Using square root table, find the square root
25725
Solution
Using the table to find\[\sqrt{3} \text{ and } \sqrt{7}\]
\[\sqrt{25725} = \sqrt{3 \times 5 \times 5 \times 7 \times 7 \times 7}\]
\[ = \sqrt{3} \times 5 \times 7 \times \sqrt{7}\]
\[ = 1 . 732 \times 5 \times 7 \times 2 . 646\]
\[ = 160 . 41\]
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Given that: \[\sqrt{2} = 1 . 414, \sqrt{3} = 1 . 732, \sqrt{5} = 2 . 236 \text { and }\sqrt{7} = 2 . 646,\] evaluate the following:
\[\sqrt{\frac{144}{7}}\]
Given that: \[\sqrt{2} = 1 . 414, \sqrt{3} = 1 . 732, \sqrt{5} = 2 . 236 \text{ and } \sqrt{7} = 2 . 646,\] find the square root of the following:
\[\frac{25}{50}\]
