Respuesta :

roukin3437student21

Answer: A.) b= 2a/h-c

1/2h(b+c)= A

2×1/2h(b+c)=A×2

h(b+c)=2A

h÷h(b+c)=2A÷h

b+c=2A/h

b+c-c=2A/h-c

b=2A/h-c

I hope this is good enough:

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