give reasons: north and south poles are only points, all longitudes are equal in length and latitudes do not m

Question

north and south poles are only points, all longitudes are equal in length and latitudes do not meet.

Answer 1

The poles really are just pints because they are physically non-existent. Remember basic geometry, a point has no dimension; it is simply an idea representing location. Longitudes are all equal in length because the physical changes on the surface of the Earth do not affect the length because longitudes are imaginary, just like lines and points. They do not need to go over mountains or anything, like imagining nothing is in their way. Latitudes do not meet simply because they are parallel to each other. Longitudes will sooner or later meet at the poles but there are no places where latitudes can meet. If ever you still don't get it, just remember the very basics of geometry and look at a globe while reviewing geometry :)

Answer 2

this doesn't help much with the longitudes or poles, but for the latitudes, think of that toy kids play with, with the center pole and the different-colored rings that stack on top of each other. it's like they sit on top of one another, but they never intersect.

for longitude, uh... well if you need physical proof, take a beach ball and measure the length of the edges of each colored stripe (the "line" where a white and a color meet, on yer average beach ball). they'll all be the same. if not, get a new beach ball...

and the poles, all i can say is that... the pole is bascially just where all the longitudes intersect, so think of any 2-d geometric figure, or the net of any 3-d one... where two edges or lines meet, there is a point.

Answer 3

From spherical geometry, longitudes are great circles, all of which intersect at the north and south poles. "Lines" of latitude define the relative distance from the equator (the great circle that is a perpendicular bisector of the longitude "lines") and the poles. I think that covers your queries.