The Cartesian coordinate plane of x and y works well with many simple situations in real life. For instance, if you are planning where to place different pieces of furniture in a room, you can draw a two-dimensional grid representing the room and use an appropriate unit of measurement.

Coordinates are two numbers (Cartesian coordinates), or sometimes a letter and a number, that locate a specific point on a grid, known as a coordinate plane. A coordinate plane has four quadrants and two axes: the x axis (horizontal) and y axis (vertical).

You can either reply with a normal-person description of your location (such as “I’m in Paris”, or “I’m in a suburb of Washington, D.C.”, or “I’m in London, near the Eye”, or “I’m in a secret bunker in an undisclosed location”), or double down on your colleague’s joke by looking up your coordinates and sending those …

Coordinates are linear and/or angular quantities that designate the position of a point in relation to a given reference frame. Latitude and longitude are used together to specify the coordinates of a precise location on the Earth.

The order in which you write x- and y-coordinates in an ordered pair is very important. The x-coordinate always comes first, followed by the y-coordinate.

The easiest way to remember the difference between latitude and longitude is by associating the terms with different parts of a ladder. Lines of latitude run east and west. Lines of latitude run horizontally around the Earth and tell you how far north or south you are from the Equator.

To convert polar coordinates (r,θ) to rectangular coordinates (x,y) follow these steps:

1. Write cosθ=xr⇒x=rcosθ ⁡ θ = x r ⇒ x = r cos ⁡ and sinθ=yr⇒y=rsinθ ⁡ θ = y r ⇒ y = r sin ⁡ .
2. Evaluate cosθ ⁡ and sinθ ⁡ .
3. Multiply cosθ ⁡ by r to find the x -coordinate of the rectangular form.

Coordinates are ordered pairs of numbers; the first number number indicates the point on the x axis and the second the point on the y axis. When reading or plotting coordinates you always go across first and then up (a good way to remember this is: ‘across the landing and up the stairs’).

The coordinates of a position are a list of scalars that act as a label for the position, such as x=42 , y=5 for this position in New York. It is common to have several different coordinate charts in use for the same positions in space. The origin of a coordinate chart is the point with all zero coordinates.

The coordinates of a point are a pair of numbers that define its exact location on a two-dimensional plane. Recall that the coordinate plane has two axes at right angles to each other, called the x and y axis. The coordinates of a given point represent how far along each axis the point is located.

Distance in Two Dimensions Calculate the positive difference between the x-coordinates and call this number X. The x-coordinates are the first numbers in each set of coordinates. For example, if the two points have coordinates (-3, 7) and (1, 2), then the difference between -3 and 1 is 4, and so X = 4.

Learn how to find the distance between two points by using the distance formula, which is an application of the Pythagorean theorem. We can rewrite the Pythagorean theorem as d=√((x_2-x_1)²+(y_2-y_1)²) to find the distance between any two points.

The distance between longitudes at the equator is the same as latitude, roughly 69 miles. At 45 degrees north or south, the distance between is about 49 miles (79 km). The distance between longitudes reaches zero at the poles as the lines of meridian converge at that point.

The time difference between each longitude (each degree) is 4 minutes. So if it is 12 noon at Greenwich (0 degree), it would be 12:04 pm at 1 degree meridian and so on. In India, the standard meridian is 82-and-half degree.

approximately 364,000 feet

You must start by finding the difference in longitude (or degrees) of the two places. You do this by adding the two numbers. Then, divide by the 15 degrees that occurs in one hour and this will give you the time difference between two locations through the International Date Line.

Time between two countries are calculated ont he basis of earth’s grid.

1. As earth completes one rotation from west to east in 24 hours, every meridian gets the direct sunlight of the sun once in every day.
2. The Earth has been divided into twenty-four time zones of one hour each.

The lines of Latitude decreases when move towards Pole because the parallels of latitude are the imaginary lines that are drawn on the surface of Earth.

Definition of Local Time Local time is determined by the sun’s position in the sky, i.e. the shadow cast by the sun, which is shortest in the middle of the day, i.e. noon and longest at the sunrise and sunset.

Local time indicates the time of a place determined on the basis of apparent movement of the sun. Standard time refers to the fixed time for places falling in the same meridian, set in a country by law. Changes continuously with the change in longitude. Remains same for a particular country.

the time based on the meridian through a specific place, as a city, in contrast to that of the time zone within which the place is located; the time in a specific place as compared to that of another place to the east or west.

Answer: Because local time is based on local noon at a particular location when the sun is due South (or North in the Southern Hemisphere) and at its highest point in the sky. Each place on earth goes through this drill every 24 hours. The earth is revolving and your location faces the sun eve.

The local time changes by four minutes for every one degree of longitude.

The world is divided longitudinally into time zones, with each hour difference roughly 15 degrees apart. Due to some countries having half hour time zones, there are more than 24 times zones in the world.

Local times in India vary due to the large size of India. India lies between 68.7 degrees east longitude and 97.25 degrees east longitude. Since the easternmost and westernmost points of India are separated by nearly 30 degrees of longitude, local time in India can vary by as much as two hours.

The time of a place depends on the longitude that passes through it. Therefore, the standard time for each country is usually taken as the time of the central meridian that passes through it. Thus, we need a standard meridian for the country.

Local time is the time at one particular meridian. Since the sun cannot transit two meridians simultaneously, no two meridians have exactly the same local time. The difference in time between two meridians is the time of the sun’s passage from one meridian to the other.

Answer. If we had one single time zone for Earth, noon would be the middle of the day in some places, but it would be morning, evening, and the middle of the night in others. Since different parts of Earth enter and exit daylight at different times, we need different time zones.

All time zones are defined as offsets from Coordinated Universal Time (UTC), ranging from UTC−12:00 to UTC+14:00. The offsets are usually a whole number of hours, but a few zones are offset by additional 30 or 45 minutes, such as in India and Nepal.

List of time zones by country

Sovereign state	No. of time zones	Notes
Russia	11	Time in Russia
United States	11	Time in the United States
Antarctica	9	Time in Antarctica
Australia	9	Time in Australia

Some countries have a great longitudinal extent i.e. large geographical extent due to which they have large time difference between there East and West extremes.So they have to adopt more than one standard time.

Russia

The countries with multiple time zones are:

• • France.
• • United States of America.
• • Russia.
• • United Kingdom.
• • Australia. However, India only has a one-time zone that is 5 hours and 30 minutes according to Indian Standard time behind UTC.

As the local TIMe differs by 4 minutes at every longitude, it would create a lot of confusion regarding time for any country as a whole which may stretch across several longitudes. Therefore each country selects a central meridian and the local time of this meridian is the standard time of that country.