Mathematics, 28.01.2021 02:30 doanh27

I need help again, but I did it step by step and I want to make sure it is the correct answer. Please help, thxs!!

I need help again, but I did it step by step and I want to make sure it is the correct answer. Plea

Answers

Answer from: raebruh3154

If your answer is 13 then it’s correct

Answer from: Quest

area of part 1:

a1=base*height/2=(8+2)*(8-2-2-1)/2=10*3/2=15 ft^2

area of part 2:

a2=length*width=(8+2)*1=10 ft2

area of part 3:

a3=length*width=8*2=16 ft2

total shaded area : a1+a2+a3=41 ft2

total area of the reactangle : a=16*8=128 ft2

total area of the nonshaded region : 128-41=87 ft2

Answer from: Quest

this doesn't make sense lol

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I need help again, but I did it step by step and I want to make sure it is the correct answer. Pleas...