I believe the answer is

I hope it's correct!
HOPE THIS HELPS! LIKE IF IT DOES!
(:
No worries.
Perimeter = 2x width + 2x height
66 x 2 = 132
338 - 132 = 206
206 / 2 = 103
The length is 103 meters.
Answer: 706.5
Step-by-step explanation:
First you have to square the radius. So for this question you multiply 5x5. That makes 25. Then you multiply that with pi ( 3.14 ) and that makes 78.50. Next you multiply it by 9, that makes 706.5.