# SOLUTION: how do i solve this : Find the area of a rectangle if three of its corners are (-0.1,-3.4), (-7.9,-3.4), and (-0.1,6.8).

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 Question 136322: how do i solve this : Find the area of a rectangle if three of its corners are (-0.1,-3.4), (-7.9,-3.4), and (-0.1,6.8).Answer by scott8148(6628)   (Show Source): You can put this solution on YOUR website!the x dimension is the difference in the first two points (where y is constant) __ -0.1-(-7.9)=7.8 the y dimension is the difference in the 1st and 3rd points (where x is constant) __ 6.8-(-3.4)=10.2 the area is just x times y __ 7.8*10.2 this works because the rectangle is oriented in line with the axes __ if it were tilted, you would have to use the distance formula to find the lengths of the sides