मराठी

Find the least number which must be added to the following number so as to get a perfect square. Also find the square root of the perfect square so obtained. 1825 - Mathematics

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प्रश्न

Find the least number which must be added to the following number so as to get a perfect square. Also find the square root of the perfect square so obtained.

1825

बेरीज

उत्तर

The square root of 1825 can be calculated by long division method as follows.

  42
4 `bar18  bar25`
-16
82     225
   -164
         61

The remainder is 61.

Clearly, 422 = 1764 < 1825

432 = 1849 > 1825

The number that should be added is 1849 - 1825 = 24, and the square root of 1849 is 43.

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पाठ 6: Squares and Square Roots - Exercise 6.4 [पृष्ठ १०८]

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एनसीईआरटी Mathematics [English] Class 8
पाठ 6 Squares and Square Roots
Exercise 6.4 | Q 5.4 | पृष्ठ १०८

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