Question

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

Answer 1

given - P(a,-11), Q(5, b), R(2, 15) and S(1, 1)

to find - value of a and b

solution

as we know diagonal of ||gm interest each other

so by mid points

we can say that

a+2/2=1+5/2

a+2=6

a=4

and similarly

b+1/2=15-11/2

b+1=4

b=3

hence value of

a=4

b=3

thanks

hope its helpful

Answer 2

Step-by-step explanation:

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