208.81 square centimeters of aluminium are needed
Solution:
Given that,
Radius = 3.5 cm
Height = 6 cm
We have to find the square centimeters of aluminum needed
So we have to find the surface area of cylinder
The surface area of cylinder is given by formula:
[tex]A = 2 \pi r(h+r)[/tex]
Where "r" is the radius and "h" is the height of cylinder
Substituting the values we get,
[tex]A = 2 \times 3.14 \times 3.5 \times (6+3.5)\\\\A = 21.98 \times 9.5\\\\A = 208.81[/tex]
Thus 208.81 square centimeters of aluminium are needed
