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Formula to find out the Earth's surface area?
The Earth is close enough to a sphere, so you can use the formula for a sphere: 4 x pi x r2. "r" is the radius; if you find the diameter of Earth somewhere, divide it by 2 to get the radius.The Earth is close enough to a sphere, so you can use the formula for a sphere: 4 x pi x r2. "r" is the radius; if you find the diameter of Earth somewhere, divide it by 2 to get the radius.The Earth is close enough to a sphere, so you can use the formula for a sphere: 4 x pi x r2. "r" is the radius; if you find the diameter of Earth somewhere, divide it by 2 to get the radius.The Earth is close enough to a sphere, so you can use the formula for a sphere: 4 x pi x r2. "r" is the radius; if you find the diameter of Earth somewhere, divide it by 2 to get the radius.
How can you use radius to find the diameter?
you double the radius to find the diameter.
What is the circumference and diameter of Earth?
The diameter of Earth at its equator is 12,756 km and its circumference is about 40,075 km.
Real life examples of diameter?
the equator is an invisible diameter around the Earth.
If you have your circumference how do you find the diameter?
diameter = circumference/pi
