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How to find surface area of a cylinder?

 Jan 22, 2015

Best Answer 

 #2
avatar+26400 
+10

How to find surface area of a cylinder ?

$$\\ \small
\begin{array}{ll}
\text{ Area of the top is } & \pi r^2 \\
\text{ Area of the bottom is } & \pi r^2 \\
\text{ Area of the side is } & 2\pi rh \\
\boxed{A = 2\pi r^2 + 2\pi rh }
\end{arry}
}$$

 Jan 22, 2015
 #1
avatar+130536 
+5

Sac = 2 * pi * r * h       where  r is the radius and h is the height.....

[ In essence, we just "stacking" a bunch of like "perimeters" on top of each other...!!!]

 

 Jan 22, 2015
 #2
avatar+26400 
+10
Best Answer

How to find surface area of a cylinder ?

$$\\ \small
\begin{array}{ll}
\text{ Area of the top is } & \pi r^2 \\
\text{ Area of the bottom is } & \pi r^2 \\
\text{ Area of the side is } & 2\pi rh \\
\boxed{A = 2\pi r^2 + 2\pi rh }
\end{arry}
}$$

heureka Jan 22, 2015
 #3
avatar+130536 
0

Oh heck, heureka....I forgot about the bottom and top..I think I really must have "CDD"..!!! Thanks!!!

 

 Jan 22, 2015

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