Which are the standard dimensions of a credit card?

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Multiple Choice

Which are the standard dimensions of a credit card?

Explanation:
Understanding standard card sizes is about having a universal fit for wallets and readers. Credit and debit cards use the ISO/IEC 7810 ID-1 size: 85.60 mm by 53.98 mm, which is about 8.56 cm by 5.40 cm. Among the given options, 8.5 cm by 5.4 cm is the closest match to that official size, so it’s the best representation. Other options either swap dimensions or are noticeably off in one or both directions.

Understanding standard card sizes is about having a universal fit for wallets and readers. Credit and debit cards use the ISO/IEC 7810 ID-1 size: 85.60 mm by 53.98 mm, which is about 8.56 cm by 5.40 cm. Among the given options, 8.5 cm by 5.4 cm is the closest match to that official size, so it’s the best representation. Other options either swap dimensions or are noticeably off in one or both directions.

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