Question

which of the following natural numberis a prefect square ? give reasons to support your answer : 729 , 5488
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Answer 1

Answer:

1. 729 - is a perfect square..

Because..

Step-by-step explanation:

square tables are

1 - 1

2 - 4

3 - 9

4 - 16

5 - 25

6 - 36

7 - 49

8 - 64

9 - 81

10 - 100

square tables end only..

1, 4, 9, 6, 5, 9, 0

Then,

729 last digit is 9

but 5488 last digit is 8

square number doesn't end with 8

so it's not a square number.

only 729 is a perfect square