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Artemon [7]
3 years ago
9

3.

Mathematics
1 answer:
Sergio [31]3 years ago
8 0
2(h × W) + 2(h × L) + 2(W × L)

2(4.2•3.1)=26.04
2(4.2•7.5)=63
2(3.1•7.5)=46.5
26.04+63+46.5=135.54 in
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