a metal pipe is 77cm long. the inner diameter of a cross section is 4cm, the outer diameter being. 4cm.find it's total surface area
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Hi Dear !
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The metal pipe(cylinder):
diameter (d) = 4 cm
Inner radius (r) = 2 cm
Outer diameter(D) = 8 cm
Outer radius (R) = 4cm
Height (h) = 77cm
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TSA Of the Given Cylinder = 2 pi r (h + r ) - 2 pi R ( h + R)
= 2036.57 - 993.14
= 1043.43 cm 2
____________________________________________________________
The metal pipe(cylinder):
diameter (d) = 4 cm
Inner radius (r) = 2 cm
Outer diameter(D) = 8 cm
Outer radius (R) = 4cm
Height (h) = 77cm
_____________________________________________________________
TSA Of the Given Cylinder = 2 pi r (h + r ) - 2 pi R ( h + R)
= 2036.57 - 993.14
= 1043.43 cm 2
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