## Clash of Rhombuses

Round 19

#### Statement

Equilateral triangle $\triangle ABC$ is divided into $2018^2$ smaller congruent equilateral triangles (with sides parallel to its sides). Let $m$ be the number of rhombuses that contain two small equilateral triangles and $d$ the number of rhombuses that contain eight small equilateral triangles. Find the difference $m-d\ .$

Time Remaining:
0%

#### Problem Status

 Points: 1500 Solved by: 47 Success Rate 36%

### Score:

#### Friends' Standings

Rank Name A B C D E F G H