Eyeball #4 — the answers
The five rounds from October 4, 2026: what each asked, the answer, and the guesses that scored the full 100.
The answers
| # | Round | The answer, and what scored 100 |
|---|---|---|
| 1 | Share | 86% 100 for 83% to 89% |
| 2 | Aim | where the arrow lands 100 for a mark within 2.5% of the wall’s length |
| 3 | Meet | where the two lines cross 100 for a tap within 8% of the longer gap |
| 4 | Ratio | ×5.9 100 for ×5.4 to ×6.5 |
| 5 | Angle | 120° 100 for 117° to 123° |
Round by round
A round scores 100 for a guess within a small margin of the truth and falls in a straight line to 0 for a wild one; the day is the average of the five. The pictures are the game — these are the figures behind them.
- Share. What percent of the shape is colored? The shape was a star, cut by a straight line: 86% of it colored, 14% not.
- Aim. Where will the arrow hit the wall? The arrow’s line had to be carried on 2.9 times the arrow’s own length to reach the wall.
- Meet. If these two lines carried on, where would they meet? The lines meet at 94°, after carrying on 0.9 and 1.2 times their drawn lengths.
- Ratio. By area, the big circle is how many of the small one? The big circle is 2.43 times as wide as the small one, and area goes as the square of the width: 2.43 × 2.43 is 5.9.
- Angle. Make a 120° angle. The angle to make was 120°, 30° past a right angle.
Previous: Eyeball #3 (Sat, Oct 3)
About Eyeball
Eyeball is Noggin’s estimation-by-eye puzzle, on the second shelf: five rounds a day dealt from twelve kinds, one guess each and then the truth drawn over it, outside the daily line-up. How to play Eyeball, or play today’s.