Question

give reason why 257 isn't perfect squar​

Answer 1

257 is not a perfect square as it contains the ones digit as 7 (units/ones digit of numbers containg 2,3,7,8 are never perfect squares). 5050 is not a perfect square as it contains odd number of trailing zerores(1 zero in this case).

Answer 2

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give reason why 257 isn't perfect square

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257 is not a perfect square as it contains the ones digit as 7 (units/ones digit of numbers containg 2,3,7,8 are never perfect squares). 5050 is not a perfect square as it contains odd number of trailing zerores(1 zero in this case).

$\small\purple{\textbf {\textsf {hope\:its\:helpful}}}$

⟼$\small\sf\underline\red{answered\:by\:KIMU}$