Solve Puzzle 1 to unlock this puzzle.
Estimated difficulty: Medium
The rectangle has area 80 cm². The shaded triangle uses the whole bottom side as its base, and its third vertex lies on the top side. Find the shaded area.
Enter the correct answer to unlock Puzzle 2.
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
- Puzzle 15 · Hard (estimated) · Locked
- Puzzle 16 · Hard (estimated) · Locked
- Puzzle 17 · Hard (estimated) · Locked
- Puzzle 18 · Hard (estimated) · Locked
- Puzzle 19 · Hard (estimated) · Locked
- Puzzle 20 · Hard (estimated) · Locked
- Puzzle 21 · Hard (estimated) · Locked
Leaderboard
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