Why distance between 1 degree longitude is111km at the equator?

Answer 1

That's true only along the equator. Anywhere else, it's less.

The farther from the equator (closer to a pole) you are, the less distance a degree of longitude extends.

At the poles, a degree of longitude is zerodistance.

Yes, that's quite an accurate number, and easy to remember.

Answer 2

Because the distance around the earth at the equator (equatorial "circumference")

is 40,075.16 kilometers, and we know that all the way around anything is 360 degrees.

40,075.16/360 = 111.32 km per degree

Answer 3

That's true only along the equator. Anywhere else, it's less.

The farther from the equator (closer to a pole) you are, the less distance a degree of longitude extends.

At the poles, a degree of longitude is zero distance.

Answer 4

No. All of the meridians of longitude converge at the poles. So the north pole is located at every longitude,

and the distance between any two longitudes at the north pole is zero.

The largest distance covered by a degree of longitude occurs along the equator, where the meridians

are spread farthest apart. That's where one degree of longitude traverses about 111.22 km. (rounded)

Answer 5

Starting at the south pole and traveling a straight line on the earth's surface for 11,100 km,

you arrive at latitude [ 9°48'00" north ].

Which is kind of baffling as to the whole point of the question. I tried to look around and

figure out what the question might have been driving at.

If it really meant to say "11,100 miles", then that would bring you to latitude [ 70°36'46" north ].

Still no obvious significance.

Nothing else I tried led to any significant latitude, so I guess the question is interpreted

as displayed, and the original answer stands . . . 9°48"00" north latitude.

Answer 6

No, at the North Pole all the longitude lines meet, so each degree of longitude would be 0 km at the North Pole.

Answer 7

Yes, that's quite an accurate number, and easy to remember.