3 years ago

Any help please? :/

Mathematics

2 answers:

Slav-nsk [51]3 years ago

8 0

The answer is 894cm<span> ². 13 x 9 x 2 + 15 x 9 x 2 + 15 x 13 x 2 = </span>894

mr Goodwill [35]3 years ago

4 0

I think it's
$894 \: cm^{2}$
Reason:
2 sides 13 x 9 = 2x13x9 = 234
2 sides 13 x 15 = 2x13x15 = 390
2 sides 15 x 9 = 2x15x9 = 270

234 + 390 + 270 = 894 cm^2

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