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I need the help please

I need the help please-example-1
User Brianestey
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1 Answer

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Area =
((a+b)*h)/(2)


((9+b)*8.2)/(2) = 49.2


(12*8.2)/(2) =




(98.4)/(2) =

49.2

Answer:

B=3
User Ken Clark
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