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2014-04-18T18:46:26+03:00
At=Al+Ab
Al=πrG=π5.13=65π
At=π.r.(r+G)=π.5.18=90π cm²
V=π.r².H/3
H²=G²-r²=13²-5²=169-25=144
H=12
V=π.25.12/3=100π cm³
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