Definition of gastrovascular. : functioning in both digestion and circulation the gastrovascular cavity of a coelenterate.
Earth's Circumference at the Equator: 24,901.55 miles (40,075.16 km). Earth's Circumference Between the North and South Poles: 24,859.82 miles (40,008 km). Earth's Diameter at the Equator: 7,926.28 miles (12,756.1 km). Earth's Diameter at the Poles: 7,899.80 miles (12,713.5 km). Average Distance from the Earth to the Sun: 93,020,000 miles (149,669,180 km).
The average radius of the Earth is 3,959 miles (6,374 kilometers). The equitorial diameter of the Earth (distance from one side of the Earth to the other at the equator) is about 7,926 miles. The ratio of the circumference to the diameter of a circle (circumference/diameter) is written as the symbol pi. Pi is approximately 3.141592. 3.14159265 3.1415926535.