Mathematics for Class 820. A cylinder is open at both ends and is made of 1.5-cm-thick metal. Its external diameter is12 cm and height is 84 cm. What is the volume of metal used in making the cylinder? Alsofind the weight of the cylinder if 1 cm of the metal weighs 7.5 gHint. External radtus 6 cm, Internal radtus 45 rm

Mathematics for Class 820. A cylinder is open at both ends and is made

1.	Mathematics for Class 820. A cylinder is open at both ends and is made of 1.5-cm-thick metal. Its external diameter is12 cm and height is 84 cm. What is the volume of metal used in making the cylinder? Alsofind the weight of the cylinder if 1 cm of the metal weighs 7.5 gHint. External radtus 6 cm, Internal radtus 45 rm
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