From the circumference of the circle, it is seen that length of railing to be replaced is; 7.1 feet of railing needs to be replaced.
The circumference of a circle of radius r is given by:
C = 2πr
We are given;
The diameter; d = 30 feet. Thus;
Radius; r = 15 feet. Thus;
Thus;
C = 2π * 15
C = 30π
We are not given the central angle but from online search, it is 27°. Thus, Length of railing is;
L = (27/360) * 30π
L = 7.1 ft
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