Question

Which is the longest line of latitude ?

Answer 1

The longest is the equator, whose latitude is zero, while at the poles--at latitudes 90° north and 90° south (or -90°) the circles shrink to a point.

Answer 2

Hey mate !!

Here is your answer .......

The longest line of latitude is the equator , 0 degree latitude which lies in between of Tropic of Cancer and Tropic of Capricorn .