The Earth's revolution around the sun does not take exactly 365 days. It takes approximately 365 days, 5 hours, 48 minutes, and 46 seconds (about 365.25 days). To keep our calendar year synchronized with the astronomical (tropical) year, we add an extra day (February 29) every four years to account for the accumulated quarter-days.

Break down complex topics into smaller, manageable chunks for easier recall.

Zambia

• Joseph Soko – 101 pts

• Distance of A Straight Line
• Mid-point of A Line
• Equation of a Straight Line
• Parallel and Perpendicular Lines
• COMMUNICATION SYSTEMS