gabbyalicorn
  • gabbyalicorn
https://www.dropbox.com/s/6ddn1ek45arbixk/Screenshot%202015-06-03%2014.24.14.png?dl=0
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
gabbyalicorn
  • gabbyalicorn
wait no ignore that
gabbyalicorn
  • gabbyalicorn
dont click on it
gabbyalicorn
  • gabbyalicorn
What is the surface area of the prism? @rainbow_rocks03 @Black_ninja123

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More answers

rainbow_rocks03
  • rainbow_rocks03
What do you think the answer is?
gabbyalicorn
  • gabbyalicorn
wait the area is 2 bh x wl or something like that?
rainbow_rocks03
  • rainbow_rocks03
well solve that then
gabbyalicorn
  • gabbyalicorn
so it is that? formula
gabbyalicorn
  • gabbyalicorn
@rainbow_rocks03
gabbyalicorn
  • gabbyalicorn
so 6x 10 x 9 x 8 ? i dont know HELP!
gabbyalicorn
  • gabbyalicorn
@rainbow_rocks03 @Black_ninja123
gabbyalicorn
  • gabbyalicorn
HELP!
Black_ninja123
  • Black_ninja123
One sec I have to find the formula
gabbyalicorn
  • gabbyalicorn
kk
Black_ninja123
  • Black_ninja123
Do you know what kind of prism is this?
gabbyalicorn
  • gabbyalicorn
triangular
gabbyalicorn
  • gabbyalicorn
am i right?
Black_ninja123
  • Black_ninja123
Let me tag some people
Black_ninja123
  • Black_ninja123
@Mehek14
Black_ninja123
  • Black_ninja123
@Love_Ranaa
gabbyalicorn
  • gabbyalicorn
i just need to know where the base height width and length is and how to times it.
Black_ninja123
  • Black_ninja123
I dont't know the formula
Black_ninja123
  • Black_ninja123
don't*
gabbyalicorn
  • gabbyalicorn
@geerky42 @sammixboo
gabbyalicorn
  • gabbyalicorn
@Science_ALLY @pinklion23
gabbyalicorn
  • gabbyalicorn
@is3535
Black_ninja123
  • Black_ninja123
@phi
phi
  • phi
there are 5 faces. the triangle face closest to us is a right triangle. can you find its area using 1/2 base * height ?
gabbyalicorn
  • gabbyalicorn
is the base byd and the hieght 10yd?
phi
  • phi
you want the bottom line that goes sides and the line that goes straight up (not the hypotenuse)
phi
  • phi
*sideways
gabbyalicorn
  • gabbyalicorn
so, 8yd and 10yd?
phi
  • phi
8 goes straight up. which line goes sideways?
phi
  • phi
you want the "legs" that form the right angle (see the little square in the corner?)
gabbyalicorn
  • gabbyalicorn
9?
gabbyalicorn
  • gabbyalicorn
yes i see it
phi
  • phi
what are the lengths of those two legs?
gabbyalicorn
  • gabbyalicorn
9 and 8?
phi
  • phi
the marked legs are the base and the height of the right triangle
1 Attachment
gabbyalicorn
  • gabbyalicorn
6= base hieght = 8
phi
  • phi
now can you find its area ?
gabbyalicorn
  • gabbyalicorn
6 x 8 x 2 = 96 / 2 = 48
phi
  • phi
why did you put in the extra 2 ?
gabbyalicorn
  • gabbyalicorn
cuz sometimes when people like teach me they put in the 2 and then im like well i should do that for everything now.
phi
  • phi
Let's go slow and find the area of just the one face, the triangle with base 6 and height 8 the formula is 1/2 * base * height what do you get ?
gabbyalicorn
  • gabbyalicorn
48
phi
  • phi
base * height is 6*8 = 48 but now multiply by 1/2
gabbyalicorn
  • gabbyalicorn
96
phi
  • phi
48 times 1/2 means 48/2 (it is not 96)
gabbyalicorn
  • gabbyalicorn
oh, then 24
phi
  • phi
yes. next the "back triangle" is the same area, it is also 24 so the front and back add up to 24+24= 48 now we have to find the area of the 3 rectangle shaped faces.
gabbyalicorn
  • gabbyalicorn
k do we do 48 x 3?
gabbyalicorn
  • gabbyalicorn
guess not
phi
  • phi
I see a 9 x 10
gabbyalicorn
  • gabbyalicorn
90
phi
  • phi
ok remember 90 now what is the length of the red line in the figure?
1 Attachment
gabbyalicorn
  • gabbyalicorn
yes
phi
  • phi
you are looking at a rectangle and the opposite sides of a rectangle are equal what is the length of the red line in the figure?
gabbyalicorn
  • gabbyalicorn
6 but then im thinking it might be 8
anonymous
  • anonymous
|dw:1433368962957:dw|
phi
  • phi
do you see you are looking at |dw:1433368988335:dw|
gabbyalicorn
  • gabbyalicorn
oh 8
phi
  • phi
the opposite sides are equal. it is not 8
gabbyalicorn
  • gabbyalicorn
9
anonymous
  • anonymous
|dw:1433369052851:dw|
phi
  • phi
yes, 9 can you find the area of the rectangle with sides 6 and 9 ?
gabbyalicorn
  • gabbyalicorn
54?
phi
  • phi
yes, so far we know 24+24 + 90 + 54 there is one more face (the back face) with the two red lines.
1 Attachment
anonymous
  • anonymous
|dw:1433369132043:dw|
phi
  • phi
you already figured out the bottom red line is 9 can you figure out the area of that rectangle ?
gabbyalicorn
  • gabbyalicorn
24+24 + 90 + 54 = 192
gabbyalicorn
  • gabbyalicorn
:d B!!!!!
phi
  • phi
yes, but we need the last face
anonymous
  • anonymous
|dw:1433369253872:dw|
gabbyalicorn
  • gabbyalicorn
72?
anonymous
  • anonymous
add that to 192
phi
  • phi
192 is not the whole answer yes 72 for the last face
gabbyalicorn
  • gabbyalicorn
264
anonymous
  • anonymous
and viola!
phi
  • phi
ok, there should be a choice with 264. Pick it!
anonymous
  • anonymous
@phi can you help me
gabbyalicorn
  • gabbyalicorn
I will! Thank you so much for helping me!!!!!
anonymous
  • anonymous
Great job!
gabbyalicorn
  • gabbyalicorn
Thank you!

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