The antipode meridian of 55° West meridian is :

Question

Accepted Answer

The antipode of a point on the Earth's surface is the point that is diametrically opposite to it. To find the antipode of a given longitude, you subtract the given longitude from 180° and change the direction from east to west or vice versa.

Let's apply this to the 55° West meridian:

1. **Calculate the antipode longitude:**
   - Start with 180°.
   - Subtract the given longitude: 180° - 55° = 125°.
   - Change the direction from west to east: 55° West becomes 125° East.

Therefore, the antipode of the 55° West meridian is 125° East longitude, which is why Option 2 is correct.

**Explanation of why other options are incorrect:**

1. **Option 1: 55° East longitude**
   - This option is incorrect because it does not account for the subtraction from 180°. The antipode calculation requires subtracting the original longitude from 180°, not simply changing the direction.

2. **Option 3: 125° West longitude**
   - This option is incorrect because it maintains the same directional designation (west) as the original longitude. The antipode requires switching from west to east or vice versa.

3. **Option 4: 155° East longitude**
   - This option is incorrect because the calculation of the antipode longitude (180° - 55°) results in 125°, not 155°. The correct antipode longitude is 125° East, not 155° East.

In conclusion, the correct antipode of the 55° West meridian is indeed 125° East longitude, making Option 2 the correct choice.