178,632 views
10 votes
10 votes
The new cylinder can has radius of 5cm and a height of 9cm how many square centimeters of aluminum will it take to make this new cylinder can ?

User Poolie
by
2.6k points

1 Answer

28 votes
28 votes

Answer:
282.85\ cm^2

Explanation:

Given

Radius of cylinder
r=5\ cm

The height of the cylinder is
h=9\ cm

The surface area of a cylinder is
2\pi rh

If only the outer is considered then, the area required is


\Rightarrow A=2* (22)/(7)* 5* 9\\\\\Rightarrow A=282.85\ cm^2

User Talyric
by
3.2k points
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