Answer:
25.12 km
Explanation:
The circle shape shown around the sphere is the circumference. The red line halfway through is the radius. To find the circumference of the circle using the radius, you must use this method: C = (2)(3.14)(r). 2 x 3.14 = 6.28. Next, multiply 6.28 x 4 because 4 is the radius. That equals 25.12. Therefore the circumference of the circle = 25.12 km.