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?
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.
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.
Multiply square feet (800) by 0.0929 to get square meters. So;800 x 0.0929 = 74.32 square meters
841 is a perfect square in the range.