Math CentralQuandaries & Queries


Question from Ivan, a student:

If the vertices of a rectangle are a(1,3),b(3,-4),and c(1,-4),find it area.

Hi Ivan,

On a piece of graph paper plot the three points $a, b$ and $c.$ Where is the fourth point that makes a rectangle? What are the lengths of the sides of the rectangle? What is the area of the rectangle?


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