Respuesta:
a) 3
Explicación paso a paso:
Datos:
AB = 12
CD = 2(12)
CD = 2AB
CD = 24
AB + CD + BC = 39
Reemplazamos:
12 + 24 + BC = 39
36 + BC = 39
BC = 39 - 36
BC = 3
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Respuesta:
a) 3
Explicación paso a paso:
Datos:
AB = 12
CD = 2(12)
CD = 2AB
CD = 2(12)
CD = 24
AB + CD + BC = 39
Reemplazamos:
12 + 24 + BC = 39
36 + BC = 39
BC = 39 - 36
BC = 3