anonymous
  • anonymous
help please surface area of prism and triangles
Geometry
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
anonymous
  • anonymous
Well, I suppose you know how to find the area of a rectangle. It's a lot like that, but for 6 rectangles! I'll start you off. 3 in times 11 in = 33. Since it's the same on the other side- that's 66 square inches. Can you do the rest? (you only need to do two more, just multiply them by two sine the opposite side will always be the same.) Once you're done you can add them up.
anonymous
  • anonymous
since*

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anonymous
  • anonymous
front is 18 isnt it?
anonymous
  • anonymous
18 by 3. 3 is the height, 8 is the width.
anonymous
  • anonymous
18*
anonymous
  • anonymous
f/b = 18x3 =56 x2 =108
anonymous
  • anonymous
Are you sure 18x3 is 56?
anonymous
  • anonymous
oh wait 54
anonymous
  • anonymous
Oh, probably a typo, since you got 108. Alright, so you have 1 more side to go,
anonymous
  • anonymous
the top
anonymous
  • anonymous
(and bottom)
anonymous
  • anonymous
t/b = 11x3 =33x2=66 ?
anonymous
  • anonymous
is that right?
anonymous
  • anonymous
That's the one I did. The top is 18*11
anonymous
  • anonymous
ok
anonymous
  • anonymous
18x 11= 198x2 =396
anonymous
  • anonymous
Yup, so now let's add it up. 396+66+108 =
anonymous
  • anonymous
507
anonymous
  • anonymous
Did you mean 570?
anonymous
  • anonymous
opps yea
anonymous
  • anonymous
sorry
anonymous
  • anonymous
570
anonymous
  • anonymous
NP. So that's your answer.
anonymous
  • anonymous
thanks
anonymous
  • anonymous
You're welcome.
anonymous
  • anonymous
u get a medal
anonymous
  • anonymous
Yaaaaaaaayyyyy

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