If you assume the asteroid is spherical, use the formula for the surface of a sphere: 4 x pi x radius2. However, at such a small size, asteroids will usually not be spherical, so this is just a rough approximation.
The world is ~24,000 miles at the equator and the US is ~3,000 miles across, just off hand, east to west, that would be about a 1/8 chance (3000/24000 = 1/8) . If you use surface area: the surface area of Earth is about 320 million miles, the surface area of the US is about 4 million miles, 4/320 = 1/80. So depending on the size, about a 1 in 80 chance.
The diameter of (7) Iris is 209 km.-> A = 137'228 square kilometer = 52'984.027 square miles
Planet Jupiter has a surface area of 23.71 billion square miles.
Jupiter has a surface area of 23.71 billion sq miles (61.42 billion km sq). Earth has a surface area of 200 million sq miles (510.072 million km sq). So to find the answer to your question we take Jupiter's surface area and divide it by Earth's surface area. 23.71 billion / 200 million = 118.55 So, it would take approximately 118.55 earths to stretch across the surface of Jupiter!
Lake Superior has a surface area of 82,103 km²
The surface area of Algeria is approximately 919,595 square miles.
Planet Jupiter comprises more than 24 billion (24,007,700,000) square miles of surface area.
Mars has a total surface area of approximately 55.9 million square miles.
Lake Superior has a surface area that is approximately 14,938 square miles greater than that of Lake Ontario. Lake Ontario has a surface area of about 7,340 square miles, while Lake Superior's surface area is about 31,700 square miles. This makes Lake Superior the largest of the Great Lakes by surface area.
The book I have was printed in 2000. The surface area of Russia then was 6,592,735 miles.
surface area 310 square miles
France has a surface area of about 220,668 square miles (571,530 square kilometers).