Mathematics, 13.12.2020 09:30 mahdy43
The Canadian $2 coin has a copper centre surrounded by a ring of nickel. The diameter of the coin is 2.8 cm. The area of the copper centre is 2.0 cm2 . What is the area of the nickel ring
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The Canadian $2 coin has a copper centre surrounded by a ring of nickel. The diameter of the coin is...
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