Answer:
Square root of 21..
4.58257569496
Rounded to the nearest tenth = 4.6
Rounded to the nearest hundredth = 4.58
Square*
The number 21 is an irrational number
Hi, there your answer for the is 4.58257569
Step-by-step explanation:
21 is not a perfect square if the square root of 21 equals a whole number.
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