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For a Cylinder: radius = 6mm Vertical eight = 9 mm, find Total surface area

Sagot :

Answer:

Total surface area is 565.5 mm²

Step-by-step explanation:

[tex]{ \rm{total \: s.a = 2\pi rh + 2\pi {r}^{2} }} \\ \\ { \rm{total \: s.a = 2\pi r(h + r)}}[/tex]

  • h is height
  • r is radius

[tex]{ \rm{total \: s.a = (2 \times 3.14 \times 6)(9 + 6)}} \\ \\ { \rm{total \: s.a = 565.5 \: {mm}^{2} }}[/tex]

greytangerinecat
Surface area is 2pi r h +. 2pi r squared
2 pi 6 9 + 2 pi 6^2
= 108 pi + 72 pi
= 180 pi
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