A) \[-11\]
B) \[-12\]
C) 15
D) 16
Correct Answer: B
Solution :
Mid-point of QR is P\[\left( \frac{-\,\,6-2}{2},\frac{5+3}{2} \right)\]or P \[(-\,\,4,4)\] But mid-point P\[\left( \frac{a}{3},4 \right)\]is given \[\left( \frac{a}{3},4 \right)\cong (-\,\,4,4)\] On comparing the coordinates, we get \[\frac{a}{3}=-\,\,4\] \[\therefore \] \[a=-\,\,12\]You need to login to perform this action.
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