Question

The extremities of a diagonal of a parallelogram are the points (3, – 4) and (–6, 5). If third vertex is (– 2, 1), then fourth vertex is-

• A. (1, 0)
• B. (–1, 0)
• C. (1, 1)
• D. None of these

Answer 1

Answer: (B)

(–1, 0)

Answer 2

D = A + C – B

= (3 – 6 + 2, – 4 + 5 – 1)

= (– 1, 0)