Respuesta :

P=12.6+2w
Plug in the width, which is 9 cm into the equation
P=12.6+(2*9)
P=12.6+18
P=30.6 cm
apologiabiology
so, if w=width
given, width=9cm

P=12.6+2w
P=12.6+2(9)
P=12.6+18
P=30.6cm

the perimeter is 30.6cm

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