How many sphereical lead shots each 4.2cm in diameter can be obtained from a rectangular solid of lead with dimensions 66cm, 42cm, 21cm. `(U s epi=(22)/7)`

Explanation

Given

diameter `4.2 cm`

Radius`2.1 cm

`
So, volume of a sphereical lead shot sphere

`=4/3pir^3 `

`=4/3pir^3 `

`=4/3×(22)/7×(2.1)^3 =4/3×(22)/7×2.1×2.1×2.1 `

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