Fond the length in kolometres of the parallel la totude throug sodoma whoch is loated $$ \sigma $$ E, $$ 30^{\circ} \mathrm{E} $$

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To find the length of a parallel of latitude at a specific latitude, we can use the formula for the circumference of a circle, which is given by:

$$
C = 2 \pi r
$$

where $$ r $$ is the radius of the circle at that latitude. The radius at a given latitude can be calculated using the Earth's radius and the cosine of the latitude.

The average radius of the Earth is approximately $$ 6371 $$ kilometers. The radius at a latitude $$ \phi $$ is given by:

$$
r = R \cdot \cos(\phi)
$$

where $$ R $$ is the Earth's radius and $$ \phi $$ is the latitude in radians.

For the latitude of $$ 30^\circ $$:

1. Convert $$ 30^\circ $$ to radians:
   $$
   \phi = 30^\circ = \frac{30 \pi}{180} = \frac{\pi}{6} \text{ radians}
   $$

2. Calculate the radius at $$ 30^\circ $$:
   $$
   r = 6371 \cdot \cos\left(\frac{\pi}{6}\right) = 6371 \cdot \frac{\sqrt{3}}{2} \approx 6371 \cdot 0.866 \approx 5526 \text{ km}
   $$

3. Now, calculate the circumference at this latitude:
   $$
   C = 2 \pi r \approx 2 \pi \cdot 5526 \approx 34620 \text{ km}
   $$

Thus, the length of the parallel of latitude at $$ 30^\circ $$ is approximately $$ 34620 $$ kilometers.
The length of the parallel of latitude at $$ 30^\circ $$ is approximately $$ 34620 $$ kilometers.

Fond the length in kolometres of the parallel la totude throug sodoma whoch is loated \( \sigma \) E, \( 30^{\circ} \mathrm{E} \)

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