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TRADITIONAL BRITISH Imperial measures 178 × 229 mm (7 × 9 inch) with an aspect ratio of 1.29, perimeter of 0.81 m, diagonal of 0.29 m and an area of 0.040762 m².
Common query: 178x229 mm, 7x9 inches.
TRADITIONAL BRITISH Imperial measures 178 × 229 mm (7 × 9 inch) with an aspect ratio of 1.29, perimeter of 0.81 m, diagonal of 0.29 m and an area of 0.040762 m².
Common query: 178x229 mm, 7x9 inches.