How long does it take for the Earth to rotate 45 degrees?

The correct answer is based on understanding how the Earth rotates in relation to time. The Earth takes approximately 24 hours to complete a full rotation of 360 degrees. To determine how long it takes for the Earth to rotate 45 degrees, we can set up a proportion.

Since 360 degrees corresponds to 24 hours, we can calculate the time it takes for the Earth to rotate 1 degree by dividing 24 hours by 360 degrees:

1 degree takes 24/360 hours, which simplifies to 1/15 hours, or 4 minutes per degree.

Now, to find out how long it takes to rotate 45 degrees, we multiply the number of degrees by the time per degree:

45 degrees × 4 minutes per degree = 180 minutes.

Since 180 minutes is equivalent to 3 hours, this confirms that it takes 3 hours for the Earth to rotate 45 degrees. Therefore, the answer aligns with this calculation.