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IKMC 2005 - Grades 9-10 - Self-study Question 11

IKMC · IKMC 2005 - Grades 9-10 - Self-study

Question 11

Three semicircles have radius 2 cm. Points A and B lie directly above the centres E and F of the two lower semicircles. What is the area of the shaded region, in square centimetres?

Question illustration
  1. $2\pi$
  2. 7
  3. $2\pi+1$
  4. 8
  5. $2\pi+2$