+0  
 
-1
153
1
avatar

Use the net to find the surface of the cylinder Length 7 cm Width 9 cm

Guest Apr 25, 2017
Sort: 

1+0 Answers

 #1
avatar+7165 
+2

Use the net to find the surface of the cylinder Length 7 cm Width 9 cm

 

I do not use a net and use this formula:

 

\(A=\frac{1}{2}\pi w^2+\pi w l=\pi w(\frac{w}{2}+l)\)

 

\(A=\pi\cdot 9cm(\frac{9cm}{2}+7cm)=\pi \cdot103.5\ cm^2\)

 

\(A=325.155\ cm^2\)

 

\( The \ surface \ of \ the \ cylinder \ is \ 325.155\ cm^2.\)

 

laugh  !

asinus  Apr 26, 2017

14 Online Users

avatar
avatar
avatar
avatar
We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  See details