hhopke
  • hhopke
Help!
Mathematics
  • Stacey Warren - Expert brainly.com
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At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
katieb
  • katieb
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hhopke
  • hhopke
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anonymous
  • anonymous
is there answer choices?
hhopke
  • hhopke
No.

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jdoe0001
  • jdoe0001
let us take first, the bottom part of the building which is .ahemm is a rectangular prism |dw:1437696377087:dw| now, notice the bottom part is not going to be painted, because, is touching the ground and the only way to paint that part is by ...hmm dunno calling godzilla and tell him to lift the building for you while you're painting the bottom, so that's no painted the top is not, because, well, the rest of the city hall building is a "rectangular pyramid" and is sitting on top of that, so, you'd paint the prism but first off, let us do the other parts
hhopke
  • hhopke
right.
hhopke
  • hhopke
I get that the bottom part of the figure (the rectangles) that can be painted are 4 rectangles, each 15x36 feet
jdoe0001
  • jdoe0001
notice the rectangular prism shape is really 6 rectangles stacked up to each other at the edges like the picture here notice the picture
jdoe0001
  • jdoe0001
hmm right 4 * 15 * 36 is the bottom part
hhopke
  • hhopke
so 2160 feet.
jdoe0001
  • jdoe0001
|dw:1437696808596:dw| the prism above is just 4 triangles like so
jdoe0001
  • jdoe0001
2160 for the vertical walls, yes
hhopke
  • hhopke
and the base is 15. Okay, I'm starting to get it now.
jdoe0001
  • jdoe0001
yeap for the triangles in the pyramid above the base is 15, the height is 12 get the area of the triangle, you have 4 of them, add them up then add that up to the 2160 of the bottom and that's hwo much area will be painted
hhopke
  • hhopke
1/2 * 15 * 12=90 per triangle, times 4 so 360 square feet for the triangles, then the 2160 for the rectangles so 2520 square feet.
jdoe0001
  • jdoe0001
yeap
hhopke
  • hhopke
which means city hall needs to buy 10 gallons of paint to cover the monument, bbecause 2520/261=9.65517....., rounded to the next gallon= 10
jdoe0001
  • jdoe0001
hmm well... 2250+90 = 2160
jdoe0001
  • jdoe0001
actaully ... nope ,you're correct.. 2520/261 yeap about 10 gallons or close
hhopke
  • hhopke
Okay. Thank you sooooo much!!!!
jdoe0001
  • jdoe0001
more like 9 gallons and 3/4 :) yw
jdoe0001
  • jdoe0001
rather 9gallons and 2/3

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