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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