Respuesta :

The answer is b1 = 2A/h-b2

Answer:

A)2A/h-b2

Step-by-step explanation:

A=h(b1+b2)/2

2A=b1h+b2h

2A-b2h=b1h

b1=2A-b2h/h

b1=2A/h-b2h/h

b1=2A/h-b2

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