what is the volume of the metal required to make a 80 cm long rod of 7 cm diameter
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height of the cylinder- 80cm
diameter-7cm
radius-diameter/2-7/2- 3.5cm
volume of cylinder-πr2h
22/7×3.5×3.5×80
volume-3080sq.cm
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diameter = 7 cm
radius =3.5 cm
rod is cylindrical
volume of cylinder = πr²h
= 22/7x3.5/3.5x80
=3080 cm³
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