A circle with a radius of 4 miles has a circumference of 25.13 miles.
Twice pi times 93 millionabout 584 million miles
Circumference of the circle: 38*pi in miles
A circle with a circumference of 188 miles has an area of about 1,800,055 acres.
If the area is a circle, the circumference is 0.28 miles.
A circle with a radius of seven miles has an area of ~153.938 square miles.
Circumference = 34*pi miles
That depends on whether 10 miles is the diameter or circumference.
If the area is a circle and the radius of the circle is 21 miles, the distance around the circle (circumference) is 131.95 miles. The area of that circle is 1,385.4 square miles.
Twice pi times 93 millionabout 584 million miles
Circumference of the circle: 38*pi in miles
That depends whether the "10-mile circle" refers to the circle's radius, its diameter, or its circumference. Assuming it is the diameter, divide it by 2 (to get the radius), then use the formula: area = pi x radius2.
If the circle's diameter is two miles, the area would be: 8042 acresA diameter radius of two miles is 12.5 square milesIf the circle's circumference is two miles, the area would be: 203.7 ac
The diameter of a circle who's circumference is 28.26 miles is: nine (9) miles
A circle with a circumference of 188 miles has an area of about 1,800,055 acres.
Circumference = 60 miles ie 2*pi*r = 60 miles, where r is the radius. So r = 30/pi = 9.55 miles (approx) and then area = pi*r2 = 286.48 sq miles.
If the area is a circle, the circumference is 0.28 miles.
The circumference of a circle-shaped lake with a diameter of 2 miles is: 6.283 miles (diameter x Pi = circumference).