Question

how many lines of longitude are there

Answer 1

$\color{red} {\bf \huge 360 \:\: longitudes}$

There are 181 latitudes, 90 in north , 90 in south and one equator. coming to longitudes there are 360 longitudes. prime meridian, 179 east, 180 degree longitude and 179 west.

Answer 2

Answer:

$360 \: longitudes \: are \: there$