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1 in = 2.54 cm (exactly)

⇒ 4 sq in = 4 x (1 sq in)

= 4 x (1 in x 1 in)

= 4 x (2.54 cm x 2.54 cm)

= 4 x 6.4516 sq cm

= 25.8064 sq cm

≈ 25.8 sq cm

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12y ago
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14y ago

A square centimetre is a unit of area. An inch is a unit of distance. The two units are therefore incompatible.

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Q: How many square centimeters are in 4 inches?
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