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If the points P(a,-11) ,Q(5,b), R(2,15), …

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If the points P(a,-11) ,Q(5,b), R(2,15), S(1,1) are the vertices of a parallelogram PQRS ,find the values of a and b .

Posted by Amrit Raj 6 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Yogita Ingle 6 years, 1 month ago

Let A(a, -11), B(5, b), C(2, 15) and D(1,1) be the given points.

We know that diagonals of parallelogram bisect each other.

Therefore, Coordinates of mid-point of AC = Coordinates of mid-point of BD

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