Sphere area

A cube with edge 1 m long is circumscribed sphere (vertices of the cube lies on the surface of a sphere). Determine the surface area of the sphere.

Correct result:

S =  9.4248 m2

Solution:

a=1 D=a 3=1 3=31.7321 r=D/2=1.7321/20.866 S=4π r2=4 3.1416 0.8662=9.4248 m2



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