Question

2. How is longitude of place determined?​

Answer 1

Answer:

Longitude at a point may be determined by calculating the time difference between that at its location and Coordinated Universal Time (UTC). Since there are 24 hours in a day and 360 degrees in a circle, the sun moves across the sky at a rate of 15 degrees per hour (360° ÷ 24 hours = 15° per hour).

Answer 2

Answer:

Longitude is measured by imaginary lines that run around the Earth vertically (up and down) and meet at the North and South Poles. These lines are known as meridians. ... The other half, the Western Hemisphere, in degrees west of the prime meridian. Degrees of longitude are divided into 60 minutes