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Australian AMC 2019 - Senior Question 20

AMC AUSTRALIA · Australian AMC 2019 - Senior

Question 20

The line $y=mx$ divides quadrilateral $ABCD$ into two equal areas.
The value of $m$ is

Question illustration
  1. 1
  2. $\frac23$
  3. $\frac8{17}$
  4. $\frac8{15}$
  5. $\frac8{25}$