Respuesta :

jackiezhang2007

Answer:

318

Step-by-step explanation:

we can fill the corner in to form whole rectangle which would mean it has an area if 19*18=342 then we subtract the filled in triangle which we can find by doing (19-11)*(18-12)/2 then subtract it from the original we get 342-24=318 Hope it helps!!

Answer:

Step-by-step explanation:

I dont know the answer but all you have to do is make a rectangle with the 11mm,18mm,and 19mm then multiply them all together then you'll multiply 10mm,12mm,and 19mm then you add them or multiply i believe and boom you got your answer

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