WebThe circumference of a circle is the distance around the circle. If you imagine the circle as a piece of string, it is the length of the string. If the circle has radius \(r\) then the … Web2 days ago · In the mid-20th century, humans began launching satellites into space that would help determine the exact circumference of the Earth: 40,030 km. A marble statue of Eratosthenes.
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WebDec 14, 2024 · Determine the radius of a circle. Let's assume it's equal to 14 cm. Substitute this value to the formula for circumference: C = 2 * π * R = 2 * π * 14 = 87.9646 cm. You can also use it to find the area of a circle: A … http://lyberty.com/encyc/articles/earth.html
WebAnother formula to find the circumference is if you have the diameter you divide the diameter by 2 and you get the radius. Once you have the radius you times the radius by 2 and times it by pie and then you get the circumference. Here are the two different formulas for finding the circumference: C = πd. C = 2πr. WebJul 29, 2024 · He could then use simple proportions to find the Earth’s circumference—7.2 degrees is 1/50 of 360 degrees, so 800 times 50 equals 40,000 kilometers. And just like that, an ancient Greek calculated precisely the circumference of our entire planet with just a stick and his brain over two thousand years ago.
WebJan 11, 2024 · 7.2°/360° = 1/50. So, if 804 km or 500 mi. (or 5,000 stadia for Eratosthenes) was 1/50th, multiplication gives you the earth's circumference: 500 mi. x 50 = 25,000 … WebApr 25, 2024 · With a circumference of 40,075 km, Earth is the fifth largest of the planets in the Solar System. The meridional circumference that is from pole to pole is 40,008 km. …
WebThe equator is a circle of latitude that divides a spheroid, such as Earth, into the northern and southern hemispheres. On Earth, it is an imaginary line located at 0 degrees latitude, about 40,075 km (24,901 mi) in circumference, …
WebSep 7, 2024 · Today we know our planet's circumference is roughly 40,000 kilometers (24,850 miles). Not bad for a more than 2,000-year-old estimate made with no modern technology! smart clinic canyon countryWebJan 15, 2024 · Circumference . equator. Rotation on Axis . It takes the Earth 23 hours, 56 minutes, and 04.09053 seconds to complete a full rotation on its axis. However, it takes an additional four minutes for the … smart clinic coventryEarth's circumference is the distance around Earth. Measured around the Equator poles ... needed] Thus Posidonius's measure of 240,000 stadia translates to 24,000 mi (39,000 km), not much short of the actual circumference of 24,901 mi (40,074 km). ... Illustration showing a portion of the globe showing a part of the … See more Earth's circumference is the distance around Earth. Measured around the Equator, it is 40,075.017 km (24,901.461 mi). Measured around the poles, the circumference is 40,007.863 km (24,859.734 mi). See more Eratosthenes The measure of Earth's circumference is the most famous among the results obtained by … See more • Earth radius • Spherical Earth • Nautical mile See more • Carl Sagan demonstrates how Eratosthenes determined that the Earth was round and the approximate circumference See more In 1617 the Dutch scientist Willebrord Snellius assessed the circumference of the Earth at 24,630 Roman miles (24,024 statute miles). Around that time British mathematician See more • Krebs, Robert E.; Krebs, Carolyn A. (2003). "Calculating the Earth's Circumference". Groundbreaking Scientific Experiments, … See more smart clinic camp hansenWebMay 27, 2024 · By Staff Writer Last Updated May 27, 2024. It will take a man, walking in a steady and uninterrupted pace of 3 miles per hour (mph), to walk one complete circuit around the entire equatorial circumference of the Earth in 8,300.33 hours. This is approximately 345.8 days, 49.4 weeks, 11.5 months or .95 years of steady walking in a … hillcrest mental healthWebWe can use this to estimate the circumference if we know the diameter, and vice versa. For example, using 3.1 as an approximation for \pi, if a circle has a diameter of 4 cm, then the circumference is about (3.1)\boldcdot 4 = 12.4 or 12.4 cm. The relationship between the circumference and the diameter can be written as \displaystyle C = \pi d hillcrest mental hospitalWebA globe is a spherical model of Earth, of some other celestial body, or of the celestial sphere.Globes serve purposes similar to maps, but unlike maps, they do not distort the surface that they portray except to scale it down.A … hillcrest merchants associationWebC = circumference π = pi = 3.1415926535898 √ = square root Calculator Use. This online calculator will calculate the 3 unknown values of a sphere given any 1 known variable including radius r, surface area A, volume V … hillcrest middle school tuscaloosa facebook