Find the least number that must be added to 8405 in order to get a perfect square. find its square root
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The number 8405 lies between 8281 and 8464
8281 < 8405 < 8464
91^2 < 8405 < 92^2
To make 8405 perfect square, 8464 - 8405 = 59 should be added.
The square root of 8405 is 91.7 approx
8281 < 8405 < 8464
91^2 < 8405 < 92^2
To make 8405 perfect square, 8464 - 8405 = 59 should be added.
The square root of 8405 is 91.7 approx
Answered by
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91^2 = 8281 which is less than 8405
92^2 = 8464 which is greater than 8405
In order to get a perfect square subtract both the numbers.
92^2-91^2 = 8464 - 8405
= 59.(3481 - which is a perfect square).
The least number = 59.
92^2 = 8464 which is greater than 8405
In order to get a perfect square subtract both the numbers.
92^2-91^2 = 8464 - 8405
= 59.(3481 - which is a perfect square).
The least number = 59.
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