CBSE Class 10 Answered
volume
Asked by | 27 Jan, 2009, 08:15: PM
Expert Answer
external diameter=30 cm
So external radius =15 cm
Thickness =2cm
So internal radius = external radius - thickness =15-2=13 cm
So volume of copper in the hemispherical solid=external volume - internal volume
=
Find this quantity, it'll be in cu cm.
Multiply this by 7, as it's given that 1 cu cm of copper weighs 7 gm.
That will be the final answer.
.
Answered by | 28 Jan, 2009, 10:01: AM
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