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1. The coordinates of the centre of a circle passing through (1, 2), (3, - 4) and (5, - 6) is:

2. One end of a line of length 10 units is at the point (-3, 2). If the ordinate of the other end be 10, then the abscissa will be

3. The horizontal and vertical lines drawn to determine the position of a point in a Cartesian plane are called

4. Let P(x, y) be equidistant from the points A (7, 1) and (3, 5).Find a relation between x and y.

5. If the four points (0,-1), (6,7),(-2,3) and (8,3) are the vertices of a rectangle, then its area is

6. The perimeter of a triangle with vertices (0, 4) (0, 0) and (3, 0) is:

8. The perimeter of the triangle formed by the points A(0,0), B(1,0) and C(0,1) is

9. The value of k, if the point P(0,2) is equidistant from A(3,k) and B(k,5) is

10. If A and B are the points (-6, 7) and (-1, -5) respectively, then the distance 2AB is equal to

11. The values of x and y, if the distance of the point (x,y) from (-3,0) as well as from (3,0) is 4 are

12. The point (-1,-5) lies in the Quadrant

13. The distance between the points (3,4) and (8,-6) is

14. The point on y-axis that is equidistant from (2,3) and (-4,1) is

15. The point on x-axis which is equidistant from (5,9) and (-4,6) is

16. The distance of the point P(6,-6) from the origin is equal to

17. The distance between the points P (-6,7) and Q (-1,-5) is

18. The condition that the point (x,y) may lie on the line joining (3,4) and (-5,-6) is

19. The points (3, 2), (0, 5), (-3, 2) and (0, -1) are the vertices of a quadrilateral. Which quadrilateral is it?

20. The graph of the equation x = 3 is: