Respuesta:
1tri.-12.5
2tri.-24.5
3tri.-12
Explicación paso a paso:
1tri.-5 x 5/2=25/2=12.5
2tri.-7 x 7/2=49/2=24.5
3tri.-8 x 3/2=24/2=12
Espero te ayude.
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Respuesta:
1tri.-12.5
2tri.-24.5
3tri.-12
Explicación paso a paso:
1tri.-5 x 5/2=25/2=12.5
2tri.-7 x 7/2=49/2=24.5
3tri.-8 x 3/2=24/2=12
Espero te ayude.