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The length of the radius of two leaf spheres made from a sheet metal is 21 cm and 17.5 cm respectively. Let's calculate the ratio of the amount of sheet metal that is made to make the shell. |
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Answer» AREA= πr×r 3.14×21×21=1384.74cm square 3.14×17.5×17.5=961.625cm square ratio= 1384.74:961.625 |
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