Answer:
620.77 feet
Explanation:
We are given that
Length of rectangle,l=27 feet
Width of rectangle,b=19 feet
Diameter of semicircle=d=19 feet
Radius of semicircle,

Fencing would be required for rose garden=l+l+b+

Where

Fencing would be required for rose garden=27+27+19+

Fencing would be required for rose garden=27+27+19+29.83=620.77 feet
Hence, the fence would be required =620.77 feet