Mathematics, 11.05.2021 20:10 journey888
A cylindrical metal pipe has a diameter of 20 millimeters and a height of 21 millimeters. A cylindrical hole cut out of the center has a radius of 6 millimeters.
A cylinder is shown. A smaller cylinder is cut out of the middle of the larger cylinder. Both have a height of 21 millimeters. The diameter of the larger cylinder is 20 millimeters, and the the radius of the smaller cylinder is 6 millimeters.
Which expressions represent the volume of metal needed, in cubic millimeters, to make the pipe? Select two options.
21Ο(10)2 β 21Ο(6)2
Ο(20)2(21) β Ο(6)2
2,100Ο β 756Ο
7,644Ο
1,344
Answers: 3
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A cylindrical metal pipe has a diameter of 20 millimeters and a height of 21 millimeters. A cylindri...
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