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Radius: 10 ft

Diameter: 20 ft

Area: 314.15 ft^2

Circumference: 62.83 ft

Step-by-step explanation:

The radius can be found using the diameter. The diameter is 20 feet which is the line that is given in the circle.

The radius(r) is equal to half the diameter(d):

r = d/2 --> r = 20/2 = 10 feet

The area(A) can be found using the radius(r) and pi or 3.14

A = pi(r^2) --> A = pi(10^2) = 314.15 feet^2

The circumference(C) is found by using the radius(r) and pi or 3.14

C = 2pi(r) --> C = 2pi(10) = 62.83 feet

c

Step-by-step explanation: