## What is 180 degree longitude called?

The international date line

The international date line, established in 1884, passes through the mid-Pacific Ocean and roughly follows a 180 degrees longitude north-south line on the Earth. It is located halfway around the world from the prime meridian — the 0 degrees longitude line in Greenwich, England.

**What does longitude 180 degrees represent?**

180 Degrees Longitude It is used to define the International Date Line. Because the Earth is spherical, traveling 180 degrees in either direction from the prime meridian will lead to 180 degrees longitude or the opposite meridian. The 180-degree meridian runs through the western Pacific Ocean.

**Where is longitude 180 degrees?**

The meridian that runs through Greenwich, England, is internationally accepted as the line of 0 degrees longitude, or prime meridian. The antimeridian is halfway around the world, at 180 degrees. It is the basis for the International Date Line.

### Why do longitude degrees only go up to 180 when a circle is 360?

A circle is divided into 4 quarters of 90 degrees each. Longitude lines pass through the north and south poles. If you stood above the earth and looked down on the north pole from above, you would see the complete circle of the equator. So longitude goes from zero to 360 degrees.

**What line is the 180 Meridian?**

the International Date Line

The prime meridian separates the eastern hemisphere from the western hemisphere. Halfway around the world, at 180 degrees longitude, is the International Date Line. The prime meridian is the line of 0 longitude, the starting point for measuring distance both east and west around the Earth.

**What is GMT What is it used for?**

Answer: Greenwich Mean Time is the yearly average (or ‘mean’) of the time each day when the Sun crosses the Prime Meridian at the Royal Observatory Greenwich. Essentially, mean time is clock time rather than solar (astronomical) time.

## Does latitude go to 180?

Latitude is the measurement of distance north or south of the Equator. It is measured with 180 imaginary lines that form circles around the Earth east-west, parallel to the Equator.

**Why there are 180 latitudes?**

Latitudes tells you how far is the point from equator and hence is denoted by positive value when towards North pole and negative when towards south pole. Each section from equator to pole is 90 degrees and two poles have 2 quarters of circle/globe hence 90X2 180 lattitudes.

**Is 180 degrees longitude east or west?**

The 180th meridian or antimeridian is the meridian 180° both east and west of the Prime Meridian, with which it forms a great circle dividing the earth into the Western and Eastern Hemispheres. It is common to both east longitude and west longitude.

### What is 180-degree angle?

The arms which form 180 degree angle is a straight line which can be observed from the below figure and thus, 180 degree angle is known as straight angle. How to Find 180-Degree Angle? To measure any angle we can directly use a protractor or a compass. Here are the steps to find a 180° angle, given in a plain sheet.

**What is the 180 degree longitude called?**

The 180th meridian or antimeridian is the meridian 180° both east and west of the Prime Meridian, with which it forms a great circle dividing the earth into the Western and Eastern Hemispheres. … 180th meridian. What countries does the 180 degree longitude line pass through?

**Do adjacent angles add up to 180 degrees?**

Adjacent angles add up to 180 degrees. (d and c, c and a, d and b, f and e, e and g, h and g, h and f are also adjacent). These add up to 180 degrees (e and c are also interior). Any two angles that add up to 180 degrees are known as supplementary angles.

## What is the measure of 90 degrees called?

An angle whose measure is equal to 90° is called a right angle. A 180° angle is called a straight angle. Angles such as 270 degrees which are more than 180 but less than 360 degrees are called reflex angles. A 360° angle is called a complete angle.