Respuesta:
102
A= 2 x a x b+ 2 x b x c + 2 x a x c
A= 2 x 3 x 3 + 2 x 3 x 7 + 2 x 3 x 7
2 x 3 x 3 = 18
2 x 3 x 7 = 42
A= 18+42+42= 102
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2 caras son cuadrados, entonces 2(3x3)= 18
la suma 84+18=102
coronita pls
Respuesta:
102
A= 2 x a x b+ 2 x b x c + 2 x a x c
A= 2 x 3 x 3 + 2 x 3 x 7 + 2 x 3 x 7
2 x 3 x 3 = 18
2 x 3 x 7 = 42
2 x 3 x 7 = 42
A= 18+42+42= 102