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 Class 7 Mathematics: questions and answers on volume

The figure below shows a semi-circular water container 3 m long. The diameter of the semi-circle 1.4m .
figvolume20520201454.JPG
What is the volume of the container in cubic metres? ( Take #pi=22/7#)
A. 4.41
B. 4.62
C. 2.31
D. 23.1

 (3m 29s)
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