What does a ratio of 2 : 1 look like?
Length of a standard full size snooker table (3.57 m)...
: Width of a ice-hockey goal (1.8 m) ...
Length of the Tigris River (1,950 km)...
: Direct distance from Land's End to John o' Groats (970 km) ...
Length of a standard DL business envelope (220 mm)...
: Width of a Penguin paperback book (111 mm) ...
Length of Africa (North to South) (8,000 km)...
: Width of Australia (4,000 km) ...
Length of a credit card (85.6 mm)...
: Minimum diameter of a golf ball (42.7 mm) ...
