Question

Scientist wants to estimate the volume of Earth and uses a sphere as a model for the planet. According to NASA, Earth's diameter is 12,757 km. The volume of a sphere is four-thirds of the product of Pi and the radius cubed, using 3.14 for pie and that the radius of a sphere is equal to two times its diameter, estimate the volume of Earth

Answer 1

\[V=\frac{ \pi d ^{3} }{ 6 }\] is the formula of the volume of a sphere using it's diameter.. so just plug in your given values.