Solve Puzzle 1 to unlock this puzzle.
Estimated difficulty: Hard
Triangle ABC has area 104 cm². D, E and F lie on BC, CA and AB, respectively, with BD:DC = CE:EA = AF:FB = 3:1. Draw AD, BE and CF. P is the intersection of AD and BE, Q of BE and CF, and R of CF and AD. Find the shaded area of triangle PQR.
Enter the correct answer to unlock Puzzle 14.
All puzzles
- Puzzle 1 · Medium (estimated)
- Puzzle 2 · Medium (estimated) · Locked
- Puzzle 3 · Hard (estimated) · Locked
- Puzzle 4 · Medium (estimated) · Locked
- Puzzle 5 · Hard (estimated) · Locked
- Puzzle 6 · Hard (estimated) · Locked
- Puzzle 7 · Hard (estimated) · Locked
- Puzzle 8 · Hard (estimated) · Locked
- Puzzle 9 · Hard (estimated) · Locked
- Puzzle 10 · Hard (estimated) · Locked
- Puzzle 11 · Hard (estimated) · Locked
- Puzzle 12 · Hard (estimated) · Locked
- Puzzle 13 · Hard (estimated) · Locked
- Puzzle 14 · Hard (estimated) · Locked