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If (-2 , -1) , (a , 0) , (4 , b) and (1 ...

If (-2 , -1) , (a , 0) , (4 , b) and (1 , 2) are the vertices of a parallelogram then a = ....

A

3

B

`-1`

C

4

D

1

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BEYOND PUBLICATION-CO-ORDINATE GEOMETRY-EXERCISE
  1. Two vertices of a triangle are (3 , 5) and ( - 4 , -5) . If the centr...

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  2. The ratio in which the point ( 4 , 8) divide the line segment joining...

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  3. If (-2 , -1) , (a , 0) , (4 , b) and (1 , 2) are the vertices of a par...

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  4. (-2,8) in ………..

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  5. If A , B , C are collinear then area of DeltaABC = .....

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  6. Area of triangle formed by ( - 4 , 0) ,(0 , 0) and (0 , 5) is ......s...

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  7. The value of p if the distance between (2 , 3) and (p, 3) is 5 is .....

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  8. The value of k if the distance between (2 , 8) and (2 , k) is 3 is ......

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  9. A(0 , - 1) , B(2 , 1) and C(0 , 3) are the vertices of DeltaABC then ...

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  10. The closed figure formed by the points (-2 , 0) , (2 , 0) , (2 , 2) , ...

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  11. The co-ordinates of the mid points joining P(x1,y1) and Q(x2,y2) is….

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  12. What do you observe ? Justify the point that divides each median in t...

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  13. If the distance between the points (3 , k) and (4 , 1) is sqrt(10) ...

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  14. If the points (1 , 2) , (-1, x) and (2 , 3) are collinear then the val...

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  15. If the centroid of the triangle formed with (a , b) , (b , c) and (c ,...

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  16. The distance between two points A ( cos theta 0 ) , B ( 0 , a sin the...

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  17. Distance of (x , y) from X-axis is ......

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  18. Distance of (x , y) from Y -axis is .....

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  19. (x , 0) is a point on ......

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  20. (0 , y) is a point on .....

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