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The area of a round dinner plate can be calculated using the formula for the area of a circle: A = r^2, where "r" is the radius of the circle.
Given the diameter is 10 inches, the radius is half of that, which is 5 inches.
Now, calculating the area: A = * (5 inches)^2 78.5 square inches.
Therefore, the correct answer is 78.5 square inches.
Added 7/31/2023 12:37:37 AM
This answer has been confirmed as correct and helpful.