18fflanagan
18fflanagan 18fflanagan
  • 14-07-2020
  • Mathematics
contestada

Please help me. Please....

Please help me Please class=
Please help me Please class=

Respuesta :

cleopatra59
cleopatra59 cleopatra59
  • 14-07-2020

Answer:

20

Step-by-step explanation:

1/2(a+b)=180

1/2(6+12)=18

1/2(18)=180

9/9=180/9

=20

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