Answer: 9 meters
To answer this question you need to know the formula to calculate the area of a square. Square has same side length so the area is: length x length.
Then the calculation would be:
Area= length x length
81m2= length x length
Length ^2= 81 m2
Lengtj= <span>√81 m2</span>
Length= 9 meters
300,000 тнaт ιѕ мy anѕwer and all yoυ нave тo do ιѕ looĸ aт тнe ѕecond nυмвer 4 or leѕѕ leт ιт reѕт 5 or мore gιve ιт a score
The total circle has a measure of 2π radian, so this portion is 1/(2π) of the whole circle
the circumference of the whole circle is 2πr
1/(2π) of 2πr=3.07
r=3.07