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Answered

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Thanom has a roll of paper consisting of a very long sheet of thin paper tightly rolled around a cylindrical tube, forming the shape indicated in the diagram.


Initially, the diameter of the roll is 12cm and the diameter of the tube is 4cm.
After Thanom uses half of the paper, the diameter of the remaining roll is closest to

Thanom Has A Roll Of Paper Consisting Of A Very Long Sheet Of Thin Paper Tightly Rolled Around A Cylindrical Tube Forming The Shape Indicated In The Diagram Ini class=

Sagot :

taveradani2007

Answer:

8 if including the tube and 4 if just counting the roll of toilet paper itself.

Step-by-step explanation:

Well like the question says the diameter of the toilet paper is 12 cm full both including the toilet paper and the tube. But we are also told the tube has a Diameter of 4. Taking this into consideration we both know that the tube will never get smaller but we do know the roll will decrease in size by half so while keeping the diameter of the tube at 4 we evenly remove half of the other 2  and we are left with a diameter of 2 / 4 / 2 in which giving us a total diameter of 8 therefore the diameter now being 8. (pls let me know if im wrong though i doubt i am)

View image taveradani2007
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