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Some plastic balls of radius 1 cm were m...

Some plastic balls of radius 1 cm were melted and cast into a tube. The thickness, length and outer radius of the tube were 2 cm, 0 cm and 30 cm respectively. How many balls were melted to make the tube ?

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`= 7830`
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TARGET PUBLICATION-MENSURATION-Problem Set -7
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  8. Find the side of a cube of volume 1 m^(3).

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  15. The radius of ametallic sphere is 9 cm. It was melted to make a wire o...

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