A cubical metal pieace of dimensions 44 cm ،32cm ،16cm was melted and cast into a clylinder۔ Of height 28 cm find the radius of the clylinder
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15cm
Volume of the cuboidal metal =44×30×15=19800 cm3
It is casted into a cylinder, therefore the volume remains unchanged.
Given that, height of cylinder =28 cm
⇒ Volume of cylinder =πr2h=19800
⇒r2=225 cm2
∴r=15 cm
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