This is a rather complicated question... but:
What is the circumference of a circle if the radius is 9.85 (Round to the nearest 10th)
Take the circumference and square it. (round to the nearest 10th)

NEW QUESTION

What is the area of a sphere if the radius is 7
TYSM

On traditional maps, earth is represented in a flat plane, or by euclidean geometry. however, a globe is a more accurate model that comes from elliptical geometry. how does a globe represent the fact that there are no parallel lines in elliptical geometry? the equator is not parallel to any other latitudinal lines. the north and south poles are never connected by a geodesic. the geodesics connecting the north and south poles never intersect. the geodesics connecting the north and south poles intersect at both of the poles.