Radio 4 in Four - What’s the best way to wrap a round present? - ÃÛÑ¿´«Ã½ Sounds

Radio 4 in Four - What’s the best way to wrap a round present? - ÃÛÑ¿´«Ã½ Sounds
What’s the best way to wrap a round present?
Tim Harford has a puzzling present-related question.