anonymous
  • anonymous
composite figures
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
This is pretty much one long cylinder. r is given as 3 and h is 24 because there are 3 cylinders joined together.
anonymous
  • anonymous
i got 100.48

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anonymous
  • anonymous
?
anonymous
  • anonymous
that's not it. did you the formula in your link?
anonymous
  • anonymous
can you show me what you did?
anonymous
  • anonymous
2(pi)r^2 = 2(3.14)*(2)*(2)
anonymous
  • anonymous
=25.12
anonymous
  • anonymous
r = 3 in the picture
anonymous
  • anonymous
2(pi)rh = 2(3.14)*(2)*(6) = 75.36
anonymous
  • anonymous
oh opps thats the wrong one
anonymous
  • anonymous
anonymous
  • anonymous
this one.. i am looking at
anonymous
  • anonymous
ok. so then you need to use 18 for h because you have three 6" cylinders back to back
anonymous
  • anonymous
ok
anonymous
  • anonymous
let me change it
anonymous
  • anonymous
228.08?
anonymous
  • anonymous
i mean 226.08
anonymous
  • anonymous
yes and then add the 25.12 you got for the circles
anonymous
  • anonymous
226.08+25.12 = 251.2
anonymous
  • anonymous
yes. that's it
anonymous
  • anonymous
yaay thanks
anonymous
  • anonymous
you're welcome
anonymous
  • anonymous
ur smart
anonymous
  • anonymous
lol thanks
anonymous
  • anonymous
ok can u help me with the other one
anonymous
  • anonymous
since ur the genius here
anonymous
  • anonymous
ok
anonymous
  • anonymous
anonymous
  • anonymous
First find the area of the prism
anonymous
  • anonymous
the square?
anonymous
  • anonymous
yes the box. Do you need help with that part? |dw:1435191242466:dw|
anonymous
  • anonymous
A=l*w ?
anonymous
  • anonymous
176
anonymous
  • anonymous
right. and you need to do that for each side of the box. |dw:1435191340603:dw|
anonymous
  • anonymous
So the top, bottom, front, and back are 176 The left and right are 121. And you add them all up to get the surface area of all six sides Does that make sense?
anonymous
  • anonymous
ok yea it does
anonymous
  • anonymous
what did you get for that part?
anonymous
  • anonymous
770
anonymous
  • anonymous
?
anonymous
  • anonymous
no wait
anonymous
  • anonymous
946?
anonymous
  • anonymous
4 sides with are 176 and 2 side with area 121 SA = 4*176 + 2* 121
anonymous
  • anonymous
4*176=704
anonymous
  • anonymous
2*121=242
anonymous
  • anonymous
so 2(pi)^2 =2(3.14)*(4)*(4) =100.48
anonymous
  • anonymous
2(pi)rh = 2(3.14)*4*9 =226.08
anonymous
  • anonymous
leave this part out. so 2(pi)^2 =2(3.14)*(4)*(4) =100.48
anonymous
  • anonymous
ok
anonymous
  • anonymous
that section is already included in the rectangle. Using it results in double counting
anonymous
  • anonymous
huh? ok u confused me
anonymous
  • anonymous
|dw:1435192776377:dw|
anonymous
  • anonymous
so A = 704+242+226.08
anonymous
  • anonymous
yes i got that
anonymous
  • anonymous
cool. that's the answer
anonymous
  • anonymous
do i add 226.08 + 100.48?
anonymous
  • anonymous
no just leave the 100.48 out completely
anonymous
  • anonymous
226.08 is wrong how??
anonymous
  • anonymous
Did you add the 704 and 242? |dw:1435193990696:dw|
anonymous
  • anonymous
ohh
anonymous
  • anonymous
A = 704+242+226.08 = 1051.08
anonymous
  • anonymous
okok

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