__17. A rectangular solid whose dimensions are 4cm, 8cm, and 12cm is inscribed in a sphere. What is the diagonal of the rectangular solid?
_18. In question 17, what is the surface area of the sphere in ¹?
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Expert's answer
2020-12-16T08:11:30-0500
17. Let a= the length of a rectangular solid, b= its width, a c= its height.
The the diagonal d of a rectangular solid will be
d=a2+b2+c2d=42+82+122=414(cm)≈14.97(cm)
18. If the rectangular solid is inscribed in a sphere, the center of the sphere is the point of intersection of the diagonals of the rectangular solid. Then
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