Respuesta :

Answer:

b=14

Step-by-step explanation:

A=1/2bh

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

Answer:

b = 14

Step-by-step explanation:

Substitute the given values for A and h into the formula

126 = [tex]\frac{1}{2}[/tex] × b × 18

126 = 9b ( divide both sides by 9 )

b = 14