2. a) What are the biggest numbers you can find for a line of langitade? b) What is the name given to the line of longitude with the smallest number? c) Find the lines of longitude for $$ 180^{\circ} \mathrm{W} $$ and $$ 180^{\circ} \mathrm{E} $$. Why are they the same line?

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Certainly! Let's break down each part of your question regarding lines of longitude:

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### **a) What are the biggest numbers you can find for a line of longitude?**

**Lines of longitude**, also known as **meridians**, are imaginary lines that run from the North Pole to the South Pole. They are measured in degrees (°) east or west of the **Prime Meridian**.

- **Maximum Values:**  
  - **180° East (180°E)**
  - **180° West (180°W)**

These are the largest numerical values for longitude. They represent the farthest points east or west you can go from the Prime Meridian. Essentially, 180°E and 180°W mark the same line on the globe, which is directly opposite the Prime Meridian.

---

### **b) What is the name given to the line of longitude with the smallest number?**

The line of longitude with the smallest numerical value is the **Prime Meridian**, designated as **0° longitude**.

- **Prime Meridian (0° Longitude):**
  - **Location:** Passes through the Royal Observatory in Greenwich, London, UK.
  - **Significance:** Serves as the reference point from which all other longitudes are measured. It divides the Earth into the Eastern and Western Hemispheres.

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### **c) Find the lines of longitude for $$ 180^{\circ} \mathrm{W} $$ and $$ 180^{\circ} \mathrm{E} $$. Why are they the same line?**

- **$$ 180^{\circ} \mathrm{W} $$:** 180 degrees west of the Prime Meridian.
- **$$ 180^{\circ} \mathrm{E} $$:** 180 degrees east of the Prime Meridian.

**Both $$ 180^{\circ} \mathrm{W} $$ and $$ 180^{\circ} \mathrm{E} $$ refer to the same line of longitude**, known as the **International Date Line (IDL)**.

**Why Are They the Same Line?**

1. **Geographical Convergence:**  
   - Longitude lines are measured up to 180° east and west from the Prime Meridian. At 180°, the east and west measurements converge to form a single line.

2. **International Date Line (IDL):**  
   - The IDL serves as the boundary between one calendar day and the next. While it generally follows the 180° longitude, it deviates in several places to accommodate the political and territorial boundaries of various nations and islands.

3. **Seamless Continuation:**  
   - There’s no "left" or "right" once you reach 180°. Whether you designate it as east or west depends on the direction from which you approach it, but geographically, it remains the same meridian.

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**Visual Representation:**

```
North Pole
    |
    |
180°E/W (International Date Line)
    |
    |
South Pole
```

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**Summary:**

- **Biggest Longitude Numbers:** 180°E and 180°W
- **Smallest Longitude Number:** Prime Meridian (0°)
- **$$ 180^{\circ} \mathrm{W} $$ and $$ 180^{\circ} \mathrm{E} $$:** Both represent the International Date Line, the same geographical line where the maximum longitudinal measurements meet.

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I hope this clarifies your questions about lines of longitude! If you have any more queries, feel free to ask.
- **a) The biggest numbers for longitude are 180°E and 180°W.** - **b) The line with the smallest number is the Prime Meridian (0°).** - **c) $$ 180^{\circ} \mathrm{W} $$ and $$ 180^{\circ} \mathrm{E} $$ both refer to the International Date Line. They are the same line because they meet at 180° longitude, which is directly opposite the Prime Meridian.

a) What are the biggest numbers you can find for a line of langitade?
b) What is the name given to the line of longitude with the smallest number?
c) Find the lines of longitude for and .
Why are they the same line?

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a) What are the biggest numbers you can find for a line of langitade? b) What is the name given to the line of longitude with the smallest number? c) Find the lines of longitude for and . Why are they the same line?