Simplify.The area of the vertical faces of a rectangular solid with height h and base edges l and b can be expressed as  Write this formula without parentheses and without multiplication signs.

A. A = 2hl + 2hb
B. A = 2hlb
C. A = 2h + lb
D. A = 2hl + b


Answer: A

Mathematics

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A.
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D.

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Mathematics