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IKMC 2022 - Grades 11-12 - Set 2 - Self-study Question 5

IKMC · IKMC 2022 - Grades 11-12 - Set 2 - Self-study

Question 5

Four circles of radius 1 intersect as shown. What is the perimeter of the shaded region?

Question illustration
  1. $\pi$
  2. A number between $3\pi/2$ and $2\pi$
  3. $3\pi/2$
  4. $2\pi$
  5. $\pi^2$