Answer:
D = 32 inches, C = 100.53 inches, A = 804.25 inches squared
Explanation:
If radius is the length between F and G (which spans half the circle), then diameter is twice that length - imagine a line going from one end of the circle to the other. Thus, diameter is:
D = 2r
D = 2(16)
D = 32 inches
The formula for circumference is 2πr (2 × pi × radius). Thus:
C = 2πr
C = 2π(16)
C = 100.53 inches
The formula for the area of a circle is πr^2 (pi × radius squared). Thus:
A = πr^2
A = π(16^2)
A = 804.25 inches squared
Hope that helps!