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<p>
Geographical coordinates are used to identify the exact position of any place on Earth.
The system is based on two main measurements: <strong>latitude</strong> and <strong>longitude</strong>.
Together, these coordinates allow scientists, pilots, navigators, and travelers to determine a
precise location anywhere on the planet.
</p>
<p>
This coordinate system is essential in many fields such as aviation, navigation, mapping,
satellite systems, GPS technology, and geography.
</p>
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<h2>What Are Geographical Coordinates?</h2>
<p>
Geographical coordinates are a system of numbers used to define a point on the Earth's surface.
They consist of two values:
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<ul>
<li><strong>Latitude</strong> – distance north or south of the Equator</li>
<li><strong>Longitude</strong> – distance east or west of the Prime Meridian</li>
</ul>
<p>
When combined, latitude and longitude create a unique coordinate pair that can locate any place on Earth.
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<h2>Why Coordinates Are Important</h2>
<ul>
<li>Used by GPS and navigation systems</li>
<li>Essential for aviation and maritime travel</li>
<li>Used in mapping and geographic information systems (GIS)</li>
<li>Important for climate, weather, and environmental studies</li>
</ul>
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<h2>Latitude Explained</h2>
<p>
Latitude measures how far a location is north or south of the <strong>Equator</strong>,
which is the imaginary line that divides Earth into the Northern and Southern Hemispheres.
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<table>
<thead>
<tr>
<th>Latitude Value</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td>0°</td>
<td>Equator</td>
</tr>
<tr>
<td>0° – 90° North</td>
<td>Northern Hemisphere</td>
</tr>
<tr>
<td>0° – 90° South</td>
<td>Southern Hemisphere</td>
</tr>
<tr>
<td>90° North</td>
<td>North Pole</td>
</tr>
<tr>
<td>90° South</td>
<td>South Pole</td>
</tr>
</tbody>
</table>
<p class="note">
Lines of latitude run horizontally around the Earth and are also called <strong>parallels</strong>.
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<h2>Longitude Explained</h2>
<p>
Longitude measures how far a location is east or west of the <strong>Prime Meridian</strong>.
The Prime Meridian passes through Greenwich, England, and divides the Earth into the
Eastern and Western Hemispheres.
</p>
<table>
<thead>
<tr>
<th>Longitude Value</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td>0°</td>
<td>Prime Meridian</td>
</tr>
<tr>
<td>0° – 180° East</td>
<td>Eastern Hemisphere</td>
</tr>
<tr>
<td>0° – 180° West</td>
<td>Western Hemisphere</td>
</tr>
<tr>
<td>180°</td>
<td>International Date Line area</td>
</tr>
</tbody>
</table>
<p class="note">
Lines of longitude run vertically from the North Pole to the South Pole
and are also called <strong>meridians</strong>.
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<h2>Example of Geographical Coordinates</h2>
<table>
<thead>
<tr>
<th>City</th>
<th>Latitude</th>
<th>Longitude</th>
</tr>
</thead>
<tbody>
<tr>
<td>London</td>
<td>51.5074° N</td>
<td>0.1278° W</td>
</tr>
<tr>
<td>New York</td>
<td>40.7128° N</td>
<td>74.0060° W</td>
</tr>
<tr>
<td>Tokyo</td>
<td>35.6895° N</td>
<td>139.6917° E</td>
</tr>
<tr>
<td>Sydney</td>
<td>33.8688° S</td>
<td>151.2093° E</td>
</tr>
<tr>
<td>Cairo</td>
<td>30.0444° N</td>
<td>31.2357° E</td>
</tr>
</tbody>
</table>
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<h2>Fun Facts</h2>
<ul>
<li>The Equator is the longest line of latitude.</li>
<li>The Prime Meridian passes through Greenwich in the United Kingdom.</li>
<li>Latitude lines never intersect each other.</li>
<li>Longitude lines meet at the poles.</li>
</ul>
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<h2>Quick Recap</h2>
<ul>
<li>Latitude measures north–south position.</li>
<li>Longitude measures east–west position.</li>
<li>Both are measured in degrees (°).</li>
<li>Together they identify any location on Earth.</li>
</ul>
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<h2>Knowledge Check</h2>
<ol style="color:var(--muted)">
<li>Which line divides the Earth into Northern and Southern Hemispheres?</li>
<li>What is the longitude of the Prime Meridian?</li>
<li>What are the two components of geographical coordinates?</li>
<li>Which city has coordinates close to 35°N, 139°E?</li>
</ol>
</div>
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