Skip to content / Đến nội dung
ThichHocToan.com

AMO · 2027 · Grades 8-9 · Self-study SET 19 Question 14

AMO

Question 14

Consider ten points, no three of which lie on a straight line. How many different triangles can be formed by choosing three of these points as vertices?
  1. 40
  2. 80
  3. 120
  4. 160
  5. 200