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AMO 2021 – Primary 6 (Grade 6) Question 5

AMO · AMO 2021 – Primary 6 (Grade 6)

Question 5

Helen has an $8$ cm by $15$ cm rectangle of red cloth. She cuts out a triangular flag of the largest possible area, then uses all the remaining cloth to make two flags of equal area. What is the area of each smaller flag in square centimeters?

Question illustration
  1. $30$
  2. $60$
  3. $90$
  4. $120$
  5. $150$