Question

2. Without doing any
calculation, find the numbers which are surely not perfect square.
(i) 153
(ii) 257
(iii) 408
(iv) 441

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Answer 1

Answer:

the answer is

153

408

441

Answer 2

Answer:

i. 153

Ends with 3.

153 is not a perfect square

ii. 257

Ends with 7

257 is not a perfect square

iii. 408Ends with 8

408 is not a perfect square

iv. 441

Ends with 1

= 441 is a perfect square.