Question

Is 819 a perfect square ? Showv your working.​

Answer 1

Answer:

no it is not a perfect square

A number that is a perfect square never ends in 2, 3, 7 or 8. If your number ends in any of those numbers, you can stop here because your number is not a perfect square.

Obtain the digital root of the number. The digital root essentially is the sum of all of the digits. If you're lost, don't worry, we'll go over each step in more detail below.

All possible numbers that are a perfect square have a digital root of 1, 4, 7, 9.

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Answer 2

Answer:

No, 819 is not a perfect Square....