208.81 square centimeters of aluminium are needed
<em><u>Solution:</u></em>
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
<em><u>The surface area of cylinder is given by formula:</u></em>

Where "r" is the radius and "h" is the height of cylinder
<em><u>Substituting the values we get,</u></em>

Thus 208.81 square centimeters of aluminium are needed
3 squared becomes 9. 9-7 equals 2, which is the final answer.
Infinitely many, because if you simplified the right side, it would equal the left side.
Step-by-step explanation:
the answer is in the picture above
Step-by-step explanation:
I have answered ur question