If you fail, never give up because FAIL means 'First Attempt In Learning'.— A. P. J. Abdul Kalam

Constructions — quick quiz

5 real SOF IMO questions on Constructions. Instant scoring and solutions, no signup — see where you stand in ~3 minutes.

Question 1 of 5

HARD

To construct an angle of 67.5°, which of the following constructions is most efficient?