1.

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.​

Answer»

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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