Question

5. If P ( 1, 2) Q( 4,6)R(5,7)S (a,b) are the vertices of a parallelogram PQRS. Find the value of " a " and "b"*

Answer 1

Answer:

llgm diagonals bisect each other at mid pt

Step-by-step explanation:

then PS=QR

(1+a/2,2+b/2)=(5+4/2,7+6/2)

(1+a/2,2+b/2)=(9/2,13/2)

i.e 1+a/2=9/2,2+b/2=13/2

a/2=9-2/2,b/2=13-4/2

a=9,b=9