Show that the points A (2,-2), B (14,10), C (11,13) and D (-1,1) represent a rectangle.
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Show that the points A (2,-2), B (14,10), C (11,13) and D (-1,1) represent a rectangle.
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D=((y2-y1)^2+(x2-x1)^2))^(1/2)
apply this.
The length of AB And CD will be equal as they are opposite sides.
similarly the lenght of BC and AD will be eqaul.
hence it will be rectangle