Geometry

Question Analysis
This question involves applying the formula for the surface area of a sphere in a real - world cost - calculation context.
The main focus is on first finding the surface area of the spherical ornament and then calculating the total cost based on the cost per square centimeter.

Key Concept Explanation
The formula for the surface area of a sphere is .
After finding the surface area, we multiply it by the cost per unit area to get the total cost.

Step - by - Step Solution
First, find the surface area of the ornament.
Substitute into the formula .
Calculate , then . So,

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