President Obama is the 2009 winner of the Nobel Peace Prize for extraordinary efforts to strengthen international diplomacy and cooperation between peoples.. The decision appeared to catch observers by surprise. full story.
An acre is an international unit of area used to measure land. There are 4046.86 square meters in an acre. Other important conversion factors for an acre: 1 Acre = 4840 square yards. 1 Acre = 43,560 square feet. 1 Acre = 0.405 hectares. 1 Acre = 0.0015625 square mile.
There are 247.10538161 acres in a square kilometer. What is a square kilometer (km 2)? A square kilometer is a unit of area in the Metric System. The symbol for square kilometer is km 2. There are 0.00404685642 square kilometers in an acre. A square kilometer is calculated as the area of a square that has 1 kilometer on each side.