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Mathematics 15 Online
OpenStudy (anonymous):

Find the surface area for the given prism. I will give you a medal for helping!!!

OpenStudy (anonymous):

|dw:1364241948431:dw|

OpenStudy (anonymous):

Find the area of each side of the prism and add all of these areas together.

OpenStudy (anonymous):

How do I do that?

OpenStudy (anonymous):

Since all of the sides are rectangles you can multiply their length by height and add them together. For example: \[49*32 + 49*32 + 41*32 + 41*32 + 41*49 + 41*49\] this can of course be simplified to \[2(49*32) + 2(41*32) + 2(41*49)\] which you might notice is the equation for surface area\[2lw+2wh+2lh\]

OpenStudy (anonymous):

Then what?

OpenStudy (anonymous):

You just solve it...

OpenStudy (anonymous):

By adding it all together that gives me the answer?

OpenStudy (anonymous):

2(49∗32)+2(41∗32)+2(41∗49) That will give you the answer

OpenStudy (anonymous):

Okay thanks!

OpenStudy (anonymous):

No problem :)

OpenStudy (anonymous):

so it's 9,778?

OpenStudy (anonymous):

Yes, that is what I got

OpenStudy (anonymous):

Okay so how do I find the volume now?

OpenStudy (anonymous):

Just multiply the length by the width by the height

OpenStudy (anonymous):

Okay thanks!

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