Respuesta :

isolate b
[tex]b = \frac{a}{12h} [/tex]
b=.583
wegnerkolmp2741o

Answer:

b=14

Step-by-step explanation:

A = 1/2 bh

We know A =126 and h = 18

126 = 1/2 b* 18

126 = 9b

Divide each side by 9

126/9 = 9b/9

14 =b

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