gabbyalicorn
  • gabbyalicorn
What is the surface area of the prism? A. 82 yd2 B. 90 yd2 C. 96 yd2 D. 108 yd2
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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gabbyalicorn
  • gabbyalicorn
https://www.dropbox.com/s/1qmyhpcjs11vm6p/Screenshot%202015-06-06%2014.29.21.png?dl=0
Michele_Laino
  • Michele_Laino
here we have two rectangle triangles like this: |dw:1433626232605:dw| the area of each of such triangle is: A=(3*4)/2=...
gabbyalicorn
  • gabbyalicorn
i got 6 then since u said there was two then 6 x 6 ? or 6 plus 6

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Michele_Laino
  • Michele_Laino
we have 2 of such triangles, so the corresponding area is:6+6=...
gabbyalicorn
  • gabbyalicorn
9
Michele_Laino
  • Michele_Laino
6+6=12
Michele_Laino
  • Michele_Laino
am I right?
gabbyalicorn
  • gabbyalicorn
oh crap im sorry your right lol i dont know what i was thinking XP
Michele_Laino
  • Michele_Laino
now, we have one rectangle like this: |dw:1433626488374:dw| which is the base of your prism. The area of that rectangle is: 3*7=...
gabbyalicorn
  • gabbyalicorn
21
Michele_Laino
  • Michele_Laino
ok!
Michele_Laino
  • Michele_Laino
now, we have another ectangle like this: |dw:1433626580385:dw| and its area is: 5*7=...
gabbyalicorn
  • gabbyalicorn
35
Michele_Laino
  • Michele_Laino
ok!
Michele_Laino
  • Michele_Laino
finally, we have this rectangle: |dw:1433626641337:dw| and its area is: 4*7=...
gabbyalicorn
  • gabbyalicorn
28
Michele_Laino
  • Michele_Laino
correct! So the total area is: 6+6+21+35+28=...
gabbyalicorn
  • gabbyalicorn
96
Michele_Laino
  • Michele_Laino
that's right! area = 96 yd^2
gabbyalicorn
  • gabbyalicorn
:D yay! TY!
Michele_Laino
  • Michele_Laino
:)

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