i) If A (-2, -1), B(a,0), C(4, b) and D(1, 2) are the vertices of a parallelogram,
then complete the following activity to fi

1 thought on “i) If A (-2, -1), B(a,0), C(4, b) and D(1, 2) are the vertices of a parallelogram,<br />then complete the following activity to fi”

1. Answer:

   a=1andb=3

   Step-by-step explanation:

   coordinates of midpoint of AC =coordinates of midpoint of BD

   -2+4/2,-1+b/2=a+1/2,0+2/2

   2/2,-1+b/2=a+1/2,0+2/2

   1,-1+b/2 =a+1/2,1

   -1+b/2=1

   b=2+1=3

   a+1=/2=1

   a=2-1

   a=1

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