Skip to content / Đến nội dung
ThichHocToan.com

MathNet 1999 — Part 01 Question 76

Math Olympiad Vault · MathNet 1999 — Part 01

Question 76

A square cylinder $X$ and a square cone $Y$ have the best base and top shape. Here is the report on the lateral surfaces of $X$ and $Y$:
  1. is always equal to the rapport of the loro volume
  2. it is equal to the rapporto of the loro volume (depending on the height)
  3. is always the $2 / 3$ of the report of the loro volume
  4. is always the best to rapporto dei loro volumi
  5. is always minor from the rapporto of the loro volume.