A150 cm pendulum swings through an arc which measured 100pi cm. in exact radians, through what angle does it swing?

Hi my sisters and brothers can tell me the answer because i don’t understand the question

The graph below represents the number of dolphins in a dolphin sanctuary. select all the key features of this function.

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.