ANSWER: the area of the 100mm (10cm) pipe is pi times it's radius squared which equals 78.5 square cms.The length is 6 metre, which is 600 cms. Therefore the volume in the pipe is 600 x 78.5 cubic centimeters which is 47,100 cc's. A thousand cc's is equal to one Litre. Your answer is 47.1 Litre.
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