The radius of a sphere is $p$ units and the radius of a hemisphere is $2p$ units. What is the ratio of the volume of the sphere to the volume of the hemisphere

Step-by-step explanation: A Hemisphere is a half of a sphere.

Volume of sphere is calculated as:

then, volume of a hemisphere is:

Sphere with radius p has volume:

Hemisphere with radius 2p has volume:

Ratio of the volumes of sphere to hemisphere will be:

Ratio of the volume of the sphere to the volume of the hemisphere is , which means volume of the hemisphere is 4x the volume of the sphere.

if the pizza is divided equally into 2 equal halves then you would get

πr^2/2

where r is the radius of the pizza.

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substitute,

circle 1 = 5

circle 2 = 20

circle 3 = 44

in this case no matter how you add, you will always get a perfect square..

hence proved

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