Skip to content / Đến nội dung
ThichHocToan.com

2019 AMC 12B Question 11

AMC12 · 2019 AMC 12B

Question 11

How many unordered pairs of edges of a given cube determine a plane?
  1. $12$
  2. $28$
  3. $36$
  4. $42$
  5. $66$