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14. If the points A (-2, -1), B (1,0), C (p. 3) and D (1, q) form a parallelogram ABCD, find thevalues of p and Q.15. Prove that the points A(-5, 4), B(-1, -2) and C (5,2) are the vertices of an isosceles right-angled triangle. Find the co-ordinates of D so that ABCD is a square.16. Find the third vertex of a triangle if its two vertices are (-1, 4) and (5, 2) and mid-point ofone side is (0,3).17. Find the value of p for which the points (-5, 1), (1, p) and (4, -2) are collinear18.A (10,5), B (6,-3) and C(2, 1) are the vertices of a triangle ABC. L is the mid-point of AB andMis the mid-point of AC. Write down the co-ordinates of Land M.Show that LM = BC |
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Answer» Step-by-step explanation: 14. ANS Solve by |
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