Answer:
Radius=9
Circumference= 56.52 or 56.52
Area= I not sure
Explanation:
Radius= 18 divided by 2 equals 9
Circumference= 18 times 3.14
I'm sorry if it's wrong, I kinda forgotten about this lesson.
Diameter = 18 m
D= 2*r
r = d/2
r =18/2
r = 9
Circumference = 2 * pi * r
C = 2 * 3.14 * 9
C = 56.52
Area = pi r^2
Area = 3.14 * 9^2
Area = 3.14 * 81
Area = 254.34
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