Question
Question: If P(1, 2), Q(4, 6), R(5, 7) and S(a, b) are the vertices of a parallelogram PQRS, then-...
If P(1, 2), Q(4, 6), R(5, 7) and S(a, b) are the vertices of a parallelogram PQRS, then-
A
a = 2, b = 4
B
a = 3, b = 4
C
a = 2, b = 3
D
a = 3, b = 5
Answer
a = 2, b = 3
Explanation
Solution
S = P + R – Q
(a, b) = (1 + 5 – 4, 2 + 7 – 6)
(a, b) = (2, 3)