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they should have done 12 times 6=72 so thatmakes that the answer

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they did peremiter so they need to do 12x6=72 so 72 is the answer

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The problem is that it is so post to x instead + the creak answer is

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your soposed to multiply  6  times 12  which = 72 and multiply 6 times 12 again and then + 72+72=144.

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they did perimeter instead of area there supposed to do 12 x 6.

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the answer is not right because 36 is the perimeter not the area of

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12 x 6

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They needed to multiply 24 x 12 = so and so because 12 + 24 is not the area.

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She/he were adding all the sides together trying to find the area she should have

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it's soposed to be x not +     12 x12 =  144 not 24  an 6 x6 =36 not 12  and then you add the answer 's 144 + 36 =170

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Your supose to multiply 12x6 no 12+12 and 6+6 because it's area not perimeter

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The Mistake is that they are thinking it is perimiter and did 12+12 and 6+6 but it is area. What you have to do is 12x6 so 6x2=12so put he 1 up 2 down and 6x1=6+1+7 so the rea answer woud be 72.

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this person did peremiter  so they need to multiply 6 times 12 which equals 72 so the answer is 72

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they added another 12 and 6 when they are not suppose to.because in area you just do both x1 ex:12x6 and the answer is 72.

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You have to times 12x24 because  it's  but its area not perimeter

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they did perimeter then stead of area because its 12+12=24 6+6=12 12+24=36 12x6

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they did 12+12 witch the should have done 12x6 that is the answer 12x6=72

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The following mistake was made when solving a problem about area.

1. Find the mistake.
2. Describe the mistake.
3. Fix the mistake.