Question

Without doing calculation , find the numbers which are surely not a perfect square. i)233 ii)777 iii)999 iv)566

Answer 1

Answer:

(i),(ii).  are not perfect square

Step-by-step explanation:

a number is not a perfect square , if it ends with 2,3,7,8 or if it has odd no. of zeroes

Answer 2

Answer:

233 and 777

Step-by-step explanation:

Perfect square numbers always ends with 1,4,5,6,9 and even no. of zeros.

So, 233 and 277 are surely not square numbers.

You can take any number, square it, and you'll see it will always end with 1,4,5,6,9 and even no. of zeros only.

Hope it helps!