Tue September 17, 2013 By: Farhana Faru

Three vertices of a square are A(1,2),B(-7,2),C(-7,-6).Plot the points,Also find the co-ordinates of the missing vertex D.

Expert Reply
Thu September 19, 2013
Three vertices are given as A(1,2),B(-7,2),C(-7,-6).
The fourth vertex can be found as shown in the graph.
Locate a point D such that:
Length AB = Length CD
and, Length BC = Length AD
Hence, we get the vertex of point D as (1, -6).
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