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Volume of a cube inscribed in a sphere

ÀÛ¼ºÀÚ Uploader : pleiades ÀÛ¼ºÀÏ Upload Date: 2019-11-21º¯°æÀÏ Update Date: 2022-06-18Á¶È¸¼ö View : 97

Find the volume of a cube inscribed in a sphere of radius r.

If the length of one side of the cube is a, then the volume Vr of the cube is:

Vr = a^3

Since the diagonal length of the cube is the diameter of the sphere,

2r = (3a^2)^(1/2)

a^2 = (4/3)r^2

therefore,

Vr = a^3 = (4/3)r^2*(4/3)^(1/2)*r = (8/(3*3^(1/2)))*r^3

*** Âü°í¹®Çå[References] ***

Vr = (8/(3*3^(1/2)))*r^3
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