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Earn +20 ptsQ: What is the square foot of a 21 foot round pool?
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Continue Learning about Algebra
What is the square root of 21?
The square root of 21 is 4.58257569495584.
The square root of 484?
The square root of 484 is 22. An easy trick to find this out is to round down to the nearest large whole number. In this case, that is 400, the square root of which is 20. If 20 x 20 = 400, what does 21 x 21 equal? Turns out that's 441. Move up to 22 x 22. There you have your answer!
Convert 7 square yards to square feet?
21 square feet
What is the square root of 84 simplify?
It is: 2 times the square root of 21 and it's an irrational number
Square root of 441?
plus or minus 21
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