A metal cuboid of dimension
22cm×15cm×7.5cm was melted and card into a cylinder of height 14cm what is its radius
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since the cuboid is melted into cylinder so curved surface areas of both figures will be equal
here h1=22cm b=15cm l=7.5cm h2=14cm
so 2(l+b)h1=2Πrh2
r=(l+b)h1÷(Πh2)
r=22×22.5×7÷(22×14)=11.25cm
hence radius=11.25cm
here h1=22cm b=15cm l=7.5cm h2=14cm
so 2(l+b)h1=2Πrh2
r=(l+b)h1÷(Πh2)
r=22×22.5×7÷(22×14)=11.25cm
hence radius=11.25cm
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