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The answer depends on the units used for 3 X 8. It should, for example, be obvious that the number of square inches in a 3 inch x 8 inch shape will be different to the number of square inches in a 3 foot x 8 ft area.

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9y ago
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9y ago

Multiply width by length to get the area. The answer would be 24 square inches.

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Q: How many square inches on a surface 3 X 8?
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