If BCDE is congruent to OPQR, then DE is congruent to

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?

What is the measure of angle tvu shown in the diagram below

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.