Which of the following is not an actual dimension in the listed size of an 8x8x16 block?

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Multiple Choice

Which of the following is not an actual dimension in the listed size of an 8x8x16 block?

Explanation:
The size 8x8x16 is a nominal designation, not the exact measurements you would measure on a real block. A standard CMU of this nominal size actually measures 7 5/8 inches by 7 5/8 inches in cross-section and 15 5/8 inches long. The numbers 7 5/8 and 15 5/8 match the true, measured dimensions, while the value 8 inches is just the nominal figure used in the size designation and does not appear as a real measurement on the block. In short, the block’s actual cross-section is 7 5/8 inches, and its actual length is 15 5/8 inches, so 8 inches is not an actual dimension.

The size 8x8x16 is a nominal designation, not the exact measurements you would measure on a real block. A standard CMU of this nominal size actually measures 7 5/8 inches by 7 5/8 inches in cross-section and 15 5/8 inches long. The numbers 7 5/8 and 15 5/8 match the true, measured dimensions, while the value 8 inches is just the nominal figure used in the size designation and does not appear as a real measurement on the block. In short, the block’s actual cross-section is 7 5/8 inches, and its actual length is 15 5/8 inches, so 8 inches is not an actual dimension.

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