find the perfect square with four digit
kvnmurty:
Bakkulu dont u need how users got their answers? u dont need methods?
square or square root
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1681 is a perfect square with four digits and its root is 41.
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square of 100 gives 100 00 the first give digits..
so square 80 or 90 can give a perfect square in 4 digits.
90² = 8100
so square 80 or 90 can give a perfect square in 4 digits.
90² = 8100
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