A rectangular ribbon of paper is looped to form a circular ring having a diameter that measures twice the rings height.
Exam GRE Section 2 Quantitative All QuestionsBrowse all questions from this exam
Question 5
Correct Answer: C
the outside of the ring), multiply the rings circumference by its height (r): SA =
C
The rings height is equal to its radius. To determine Quantity A (the surface area of
the outside of the ring), multiply the rings circumference by its height (r): SA =.
To determine Quantity B (twice the rings circular area), multiply 2 by the bases area:
. As you can see, the two quantities are equal.
Discussion
methoddyOption: D
I do ot agree, since the thickness of the paper has to be considered when the measurement is made to outside of the paper unless there is an assumption that the thickness ofthe paper is negligible
sarrocksOption: D
This is such a bullshit question. There is so much information missing. Thickness of paper should be given, height of ring does not mean anything, it should be specified properly as height of paper to make ring.