To find: The area of the yellow part of the tabletop in factored form.

Answer to Problem 28PPE
Explanation of Solution
Given information: A circular table is painted yellow with a red square in the middle. The radius of the tabletop is 6x. The side length of the red square is 3x.
Calculation:
The area of the red square is,
The total area of the circular table including the red square is,
Then, area of the yellow part of the tabletop is,
Thus, the area of the yellow part of the tabletop is
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