Circumference = 2 pi r
2 pi r = 200
r = 100 / pi
Area of base = pi r r
Area of base = 100*100 / pi
Area of base = 3183.1 sq. m.
Answer:
x+9
Step-by-step explanation:
the perimeter of any polygon is the sum of all the sides
160+100+180+60=500
180/500=0.36=36%
50x36%=18
That's your answer lovely~
Make a proportion:

Then cross multiply and divide to solve.
20x=119
x=5.95
The answer is $5.95