Question

find perfact square of 216.​

Answer 1

Answer:

6√6

Step-by-step explanation:

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Answer 2

Answer:

So now we know the digital root of 216 is 9. Is 9 in the list of digital roots that are always a square root (1, 4, 7 or 9)? Answer: YES, 9 is in the list of digital roots that are always perfect squares. We can conclude that 216 could be a perfect square!