“We don’t need a magic pad,” said Moe, the saw operator. He picked up a circular saw. “I’ll cut the beams by feel.”
He drew a shaky hexagon. The pad glowed. Numbers appeared: Side length: 1.5m. Interior angle: 120°. Area: 5.85 m².
The first beam was too short. The second was too long. The third twisted like a noodle because Moe misjudged the angle.
The mayor came to see it. “Incredible! How did you finally learn geometry?”