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Mathematics, 02.04.2020 00:50 beard4

The radius of Circle Upper A is 6 mm. The radius of Circle Upper B is 5 mm greater than the radius of Circle Upper A. The radius of Circle Upper C is 5 mm greater than the radius of Circle Upper B. The radius of Circle Upper D is 3 mm less than the radius of Circle Upper C. What is the area of each circle? How many times greater than the area of Circle Upper A is the area of Circle Upper D?

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