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kondor19780726 [428]
3 years ago
14

 can someone pls help for brainlest

Mathematics
2 answers:
Tpy6a [65]3 years ago
7 0
The answer is 73 i think
mash [69]3 years ago
5 0

Answer:

surface \: area = area \: of \: base + area \: of \: the \: 4 \: triangular \: faces \\  = (l \times w) + 8 \times ( \frac{1}{2}  \times base \times height) \\  = (4 \times 4) + 8 \times ( \frac{1}{2}  \times 2 \times 7) \\  = 16 + 56 \\  = { \boxed{72}} \: square \: millimeters

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