yes
The square root of 640000 is 800. This is because the square root of a number is a value that, when multiplied by itself, gives the original number. In this case, 800 multiplied by 800 equals 640000.
what is a number you can square that is bigger than 700 but smaller than 800?
The number you can square that is bigger than 800 but smaller than 900 is between the square roots of those two values. The square root of 800 is approximately 28.28, and the square root of 900 is 30. Therefore, any number between 29 and 30, such as 29.5, when squared, will yield a result between 800 and 900.
sqrt(900) = 30 sqrt(800) = 28.28 So there is just one number which square is between 800 and 900: 29 292=841
272 = 729; 282 = 784 √700 = 26.45... so first square number greater than 700 is 272 = 729 √800 = 28.28... so last square number less than 800 is 282 = 784
841, which is 29².
A number you can square that is bigger than 800 but smaller than 900 is 30. When you square 30, you get 900, which is on the upper limit. However, if you want a number that fits strictly between those limits, 29.5 is a suitable choice, as squaring it gives 870.25, which is between 800 and 900.
29
800 square meters = 8,611.13 square feet.
The square root of 800: ± 28.284271
800 square feet = about 74.32 m2
800 square feet = 74.32 square meters.