Asked by Dependra
A metallic right circular cylinder is15cm high and the diameter of the base is 14cm it is melted and recasted into another cylinder with radius 4cm find its height and curved surface area
Answers
Answered by
bobpursley
volume=PI*r^2 h=PI*7^2*15
new volume is the same...
PI*7^2*15=PI*4^2*h
height= 49*15/16 cm
Surface area: PI*14*49*15/16
new volume is the same...
PI*7^2*15=PI*4^2*h
height= 49*15/16 cm
Surface area: PI*14*49*15/16
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