Bob took a photo of "Big
Ben" which is 316 ft high.
The length of his arm is
about 1.5 ft.
• How far from Big Ben did he take this photo?
FR
1 ft (1 foot)
= 30,48 cm.
Prise
d'initiative
44 La falaise
Voici un extrait du roman de Jules Verne, L'île
mystérieuse: