You can put this solution on YOUR website! .
the area of the region enclosed by [x]+[y]=1 is ? brackets mean (absolute value)
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The area of this region is 2 square units.
It consists of 4 right-angled triangles, each with the legs of 1 unit long.
See the plot below.
Region |x| + |y| <= 1 enclosed between 4 straight lines.
My note: usually, when someone wants to present the absolute value of x, he/she uses the notation |x|.
