Question 1

How does sphere volume compare to a cylinder?

Accepted Answer

A sphere’s volume is exactly 2/3 of the cylinder that encloses it (same radius and height = 2r).

Question 2

What is the volume of Earth?

Accepted Answer

Earth has a radius of about 6,371 km, giving a volume of approximately 1.083 × 10¹² km³.

Sphere Volume

数学