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IKMC 2025 - Grades 11-12 - Self-study Question 13

IKMC · IKMC 2025 - Grades 11-12 - Self-study

Question 13

A quarter-circle SP has centre O and radius r. The two grey regions between it and triangle ORP have equal areas. What is OR?

Question illustration
  1. $\pi r/2$
  2. $3r/2$
  3. $\pi r$
  4. $2/\pi$
  5. $\pi/(2r)$