Question

Which least number must be subtracted from 177 to make it a perfect square​

Answer 1

Answer:

169 is a perfect square

so to make 177 a perfect square

177-8 = 169

hence we must subtract 8 to make 177 a perfect square

Answer 2

Answer:

Step-by-step explanation:

By approximation method,

13² = 169

14² = 196

As we can see 177 falls between 13² and 14². So the nearest perfect square is 169 which is 13².

Thus the least number that needs to be subtracted is 177 - 169 = 8.