There are three lines of latitude that cross India. The one in between the two halves is the 80th meridian east, 80° east of Greenwich. The 90° and 70° lines also cross India.
Every line bisector divides a line into two halves: by definition!
diameter
an equator
A bisector is a line that divides another into two halves. If the second line is at right angles to the first, it is perperdicular. So, a perpendicular bisector of a side is a line which is at right angles to the side and which divides the side into two halves.
symmetry
The parallel of zero latitude, called the 'equator'.
The line of zero latitude does that. Folks often call that one the 'Equator'.
a bisecting line is a line that divides something into halves.
Every line bisector divides a line into two halves: by definition!
a line
That line is called a "Diameter".
equator
The Equator...
diameter
To bisect is to cut or divide into halves. A bisecting line would then be a line that divides another line in half or a line that divides an angle in half.
A line of symmetry divides a figure into two matching halves.
prime merideane and equator The equator divides the earth into two equal halves.