Competition math, level by level.

5,727 real problems from the AMC, AIME, HMMT and more. Every one you miss comes back.

Start practicingSign in

Today’s problem

2022 AMC 12B, Problem 10

Regular hexagon ABCDEFABCDEF has side length 2.2. Let GG be the midpoint of AB‾,\overline{AB}, and let HH be the midpoint of DE‾.\overline{DE}. What is the perimeter of GCHF?GCHF?

Your answer

Used with permission of the Mathematical Association of America. A new problem is set each day.

Harder problems move you up faster.

  1. BronzeLevel 1
  2. SilverLevel 10
  3. GoldLevel 25
  4. PlatinumLevel 45
  5. DiamondLevel 65
  6. MasterLevel 85
A problem rated 90 pays 128 XP, one rated 10 pays 32.An example climb.

Each problem is rated from 1 to 100.

The example is rated 45. Harder than 37% of AIME problems. Problems this hard are usually numbers 4 to 9.

Each miss comes back, then a new problem tests the idea.

  1. Missed
  2. Back on blank paper
  3. A new one, same idea
An example miss.

10 problems find your starting point.

Start practicing