SOLUTION: 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). How would i do this?

Question 453409: 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). How would i do this?
Answer by rwm(914) (Show Source): You can put this solution on YOUR website!
find the distance between the first two points.
The y's are the same.
the distance between the x's is -.1 and -7.9
7.8 width
the distance between the first and the third is 6.8 and -3.4
since they are opposite signs we add them
3.4 and 6.8
10.2 length
length times width
so the area is 7.8*10.2
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