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Australian AMC 2016 - Intermediate Question 9

AMC AUSTRALIA · Australian AMC 2016 - Intermediate

Question 9

On a clock face, a line is drawn between 9 and 3 and another between 12 and 8. What is the acute angle between these lines?

Question illustration
  1. $45^\circ$
  2. $60^\circ$
  3. $50^\circ$
  4. $30^\circ$
  5. $22.5^\circ$