What is the smallest possible perimeter of the triangle rounded to the nearest tenth

The sum of two numbers is 86, and their difference is 20. find the two numbers

17 in long 1.3 ft wide and 8in high what is the volume

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.