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 the question is /images/questions/question18838.png

 Apr 1, 2020
 #1
avatar+63 
+1

I might be able to help except I've no idea what the question is cos the web link is either wrong or just doesn't work. Try putting the question up like you did with you other ones where it's a picture. Then I can have a look and see if I can help you or not smiley

 Apr 1, 2020
 #2
avatar+25597 
+2

Surface Area of a Cylinder

 

I assume: https://vle.mathswatch.co.uk/images/questions/question18838.png

 

 

\(\begin{array}{|rcll|} \hline \text{area} &=& 2\pi r^2+2\pi r h \quad | \quad r=6\ \text{cm},\ h=25\ \text{cm} \\ \text{area} &=& 2\pi 6^2+2\pi *2*25 \\ \text{area} &=& 2\pi *36+2\pi *50 \\ \text{area} &=& 72\pi +100\pi \\ \text{area} &=& 172\pi \\ \text{area} &=& 540.353936417 \ \text{cm}^2 \\ \hline \end{array}\)

 

Surface Area of a Cylinder is \(\mathbf{\approx 540.4\ \text{cm}^2}\)

 

laugh

 Apr 1, 2020

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