Skip to content / Đến nội dung
ThichHocToan.com

IKMC 2010 - Grades 11-12 - Paper 02 - Self-study Question 1

IKMC · IKMC 2010 - Grades 11-12 - Paper 02 - Self-study

Question 1

The picture illustrates $1+3+5+7=4\times4$. What is $1+3+5+\cdots+19$?

Question illustration
  1. $10\times10$
  2. $11\times11$
  3. $12\times12$
  4. $13\times13$
  5. $14\times14$