In geometry, the circumference (from Latin circumferences, meaning "carrying around") of a circle is the (linear) distance around it. That is, the circumference would be the length of the circle The area of a circle is pi (approximately 3.14) times the radius of the circle squared.
It is the same distance apart. .1875-.125 is .0625
1/4 is .25-.1875 is .0625
12 cm:102 ft
-------- ------
12 12
1 cm:8.5 ft
The scale is 1 cm equals 8.5 ft.
A) 18
Apparently my answer has to be 20+ characters so this is filling space