Skip to content / Đến nội dung
ThichHocToan.com

VTMO 2019 — Grade 6 — semifinal Question 11

VTMO · VTMO 2019 — Grade 6 — semifinal

Question 11

In the illustrated sequence, which figure contains $66$ triangles?

Question illustration
  1. $15$
  2. $16$
  3. $17$
  4. $18$
  5. $19$