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You don't need a mathematical equation. All you need are the numbers.In round, approximate numbers:-- Earth diameter = 12,750 km-- Moon diameter = 3,475 kmIf you want a 'ratio' to amaze your friends with, then you can use an actualmathematical equation for that:The ratio of the Earth's diameter to the Moon's diameter isDE / DM = 3.669 (rounded)-- The linear dimensions of the Earth are 3.669 times as large as those of the moon.By simple geometry, then, you can say that . . .-- the Earth's surface area is 13.462 times that of the moon,-- Earth's volume is 49.39 times the Moon's volume.(If you're in the league of those that are comfortable with mathematical equationsand like to toss them around, then you find that some consider the phrase "timessmaller" to be quite arbitrary, while to others, it has no meaning at all.)
7,291.==================================Another contributor noticed:The question is fundamentally flawed, and since garbage was submitted to WA,the answer that came out is garbage as well.The earth's diameter is 12,756 kilometers, whereas the distance between earth and sunis 93,000,000 miles. It's true that their quotient is about 7,291 , but unfortunately, thatnumber in this case has no physical significance. Before we can get an answer thatmeans something, either the kilometers must be converted to miles or else the milesmust be converted to kilometers.When we do that, we'll find that it would take roughly 11,730 earths (rounded)placed side by side to build a bridge to the sun.
The earths 4 layers are: Find Out Yourself Lazy
The diameter of the Moon is about 1/4 (one fourth) the diameter of the Earth (more precisely 27.2%). Moon diameter = 3476 km (equator) 3472 km (polar) Earth's diameter = 12756 km (equator), 12742 km (polar)
The surface.
Multiply the diameter by pi to find the circumference
Rotations and distance tells you about the circumference and this tells you about the diameter. How about a specific problem?
Divide the distance traveled by the product of the diameter and pi.
Earths atmosphere
To find the distance around the circle, you must find the diameter, which is two times the radius. Then you multiply the length of the diameter by Pi. (Pi is a constant roughly equal to 3.14).
The distance from the center of the Earth to the center of the moon is about 384,467 km. If you subtract from this distance the average radius of the Earth (6,378 km) and the average radius of the moon (1,738 km), you find 376,351 km.Convert the diameter of a strawberry seed, 2 millimeters, to kilometers: .000002 km. Now, divide the distance from the surface of the Earth to the surface of the moon by the diameter of a strawberry seed. The answer is: 188,175,500,000 strawberry seeds!
Use the small-angle formula to find the angular diameter of mars when it is closest to Earth
You don't need a mathematical equation. All you need are the numbers.In round, approximate numbers:-- Earth diameter = 12,750 km-- Moon diameter = 3,475 kmIf you want a 'ratio' to amaze your friends with, then you can use an actualmathematical equation for that:The ratio of the Earth's diameter to the Moon's diameter isDE / DM = 3.669 (rounded)-- The linear dimensions of the Earth are 3.669 times as large as those of the moon.By simple geometry, then, you can say that . . .-- the Earth's surface area is 13.462 times that of the moon,-- Earth's volume is 49.39 times the Moon's volume.(If you're in the league of those that are comfortable with mathematical equationsand like to toss them around, then you find that some consider the phrase "timessmaller" to be quite arbitrary, while to others, it has no meaning at all.)
7,291.==================================Another contributor noticed:The question is fundamentally flawed, and since garbage was submitted to WA,the answer that came out is garbage as well.The earth's diameter is 12,756 kilometers, whereas the distance between earth and sunis 93,000,000 miles. It's true that their quotient is about 7,291 , but unfortunately, thatnumber in this case has no physical significance. Before we can get an answer thatmeans something, either the kilometers must be converted to miles or else the milesmust be converted to kilometers.When we do that, we'll find that it would take roughly 11,730 earths (rounded)placed side by side to build a bridge to the sun.
The radius of a circle is the distance from the center to an outside edge of the circle. The diameter is the distance all the way across the circle. Therefore, the radius is half the value of the diameter.
wheel diameter times pi times number of rotations
It is half the circle's circumference plus its diameter.