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gabbyalicorn
 one year ago
The prism has a surface area of 202 ft2.
What would the surface area of the prism be if each dimension were tripled?
gabbyalicorn
 one year ago
The prism has a surface area of 202 ft2. What would the surface area of the prism be if each dimension were tripled?

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Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2the new dimensions are: 5*3=... 9*3=... 4*3=...

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2please wait a moment, I'm checking your computation

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2your problem asks for the area of the total surface of the prism. Now the area of the total surface of your prism is given by the subsequent computation: A=2*(15*27+ 15*12+27*12)=...

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2here more steps: \[\Large \begin{gathered} A = 2 \times \left( {15 \times 27 + 15 \times 12 + 27 \times 12} \right) = \hfill \\ \hfill \\ = 2 \times \left( {405 + 180 + 324} \right) = ... \hfill \\ \end{gathered} \]

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2I got a different result

gabbyalicorn
 one year ago
Best ResponseYou've already chosen the best response.0wait do we add the two together?

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2you have to compute this: 405+180+324=... \[\large \begin{gathered} A = 2 \times \left( {15 \times 27 + 15 \times 12 + 27 \times 12} \right) = \hfill \\ \hfill \\ = 2 \times \left( {405 + 180 + 324} \right) = \hfill \\ \hfill \\ = 2 \times 909 = ... \hfill \\ \end{gathered} \]

gabbyalicorn
 one year ago
Best ResponseYou've already chosen the best response.01818 plus 122922 = 124740

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2no, it is: A= 1818 feet^2 only

gabbyalicorn
 one year ago
Best ResponseYou've already chosen the best response.0I didnt get that, sorry. :/

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2the new area of the total surface is, namely your answer, is: \[\Large \begin{gathered} A = 2 \times \left( {15 \times 27 + 15 \times 12 + 27 \times 12} \right) = \hfill \\ \hfill \\ = 2 \times \left( {405 + 180 + 324} \right) = \hfill \\ \hfill \\ = 2 \times 909 = 1818fee{t^2} \hfill \\ \end{gathered} \]

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2since we have to sum the area of all of the six sides of your prism

gabbyalicorn
 one year ago
Best ResponseYou've already chosen the best response.0so 10908? 1818 x 6

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2no, we have finished, your answer is: A= 1818 feet^2

gabbyalicorn
 one year ago
Best ResponseYou've already chosen the best response.0oh kk. Thank you!!! ^u^

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.0Old Surface Area = 202 ft^2 New Surface Area = 1818 ft^2 Notice we have this ratio: (new area)/(old area) = 1818/202 = 9 and how 3^2 = 9. This is no coincidence. The old surface area is multiplied by 3^2 = 9 to get the new surface area. If you asked "What would the surface area of the prism be if each dimension were quadrupled?", then you would multiply the old surface area by 4^2 = 16 to get the new surface area
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