Question

2. Answer any one from internal choice of each question.
3. Each question carries 4 marks.
2x4=8
18. (A) Find the area of the quadrilateral whose vertices taken in order are (2, 1), (6,2),
(5, 6) and (1,5)
(OR)
(B) The vertices of A ABC are A (1, -1), B (5, 1), C(-1,3), verify that a median divides
it into two triangles of equal areas.
19. (A) ABCD is a rectangle formed by the points A (-1,), B (-1,4), C (5, 4) and D (5,-1).
P, Q, R and S are the midpoints of AB, BC, CD and DA respectively. Is the quadri-
lateral PQRS, a square, a rectangle or a rhombus ? Justify your answer.
(OR)
(B) If two vertices of a parallelogram are (3,2), (-1,0) and the diagonals cut at (2,-5),
then find the other vertices of the parallelogram.​

Answer 1

Answer:

area of quadrilateral ABCD =17 square.units