Question

The Equatorial circumference of the Earth is_______.
A. 40075 km
B. 40000km
C. 75040km
D. 54070km

Answer 1

Hint: The radius of the earth is about 6400 km and the gravitational force on the surface of the earth is 9.8 km per second.

Complete answer: The equatorial circumference of the equator is 40075 km. The equator is known as the great circle of the earth and it is situated at zero degree latitude. it is the greatest latitude and parallel as if you move away from the equator all the latitude keeps decreasing.
The equatorial circumference of Earth is about 24,901 miles which in total accounts for 40,075 kilometers. However, if it is measured from pole-to-pole the meridional circumference comes out to be 24,860 miles which account for 40,008 kilometers. This shape and measurements cause the flattening of the earth.
The Tropic of Capricorn is situated at the south of the equator and it is a subsolar point at the December solstice. The Tropic of cancer is situated north of the equator.
The Antarctic Circle is an equal of scope on the Earth at around 66.5 degrees south of the equator. Upon the arrival of the southern summer solstice (around December 22 every year), a spectator on the Antarctic Circle will see the Sun over the skyline for an entire 24 hours.
The Earth's width at the Equator is around 12,756 kilometers (7,926 miles). At the shafts, the breadth is around 12,714 kilometers (7,900 miles). The Earth's tropical lump is around 43 kilometers (27 miles).

Thus, option A is the right answer.

Note: The Equator is a nonexistent line around the center of the Earth. It is somewhere between the North and South Poles, and partitions the Earth into the Northern and Southern Hemispheres.