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Find the distance between the parallel lines `9x + 40y + 21 = 0` and `9x + 40y - 20 = 0`.

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A N EXCEL PUBLICATION-STRAIGHT LINES-QUESTION BANK
  1. What is the distance of the point (h,k) from the line 9x + 40y + 21 = ...

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  2. If (h,k) lies on 9x + 40y - 20 = 0, what is the value of 9h + 40k?

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  3. Find the distance between the parallel lines 9x + 40y + 21 = 0 and 9x ...

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  4. Let A (5,2), B (3,-3) and C (-4,3) be the vertices of a Delta ABC. Fin...

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  5. Let A (5,2), B (3,-3) and C (-4,3) be the vertices of a Delta ABC Find...

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  6. Suppose that the line x - 2y + 3 = 0 is rotated through a right angle ...

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  7. Suppose that the line x - 2y + 3 = 0 is rotated through a right angle ...

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  8. Consider the points A (5,1) ,B (1,-1) and C (11,4) Raju proved A,B,C ...

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  9. Consider the points A (5,1) ,B (1,-1) and C (11,4) Saji proved A,B an...

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  10. Consider the points A (5,1) ,B (1,-1) and C (11,4) Ram proved A,B,C a...

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  11. Consider the points A (5,1) ,B (1,-1) and C (11,4) Neelima proved A,B...

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  12. Complete the following table

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  13. Reduce the lines 3x - 4y + 4 = 0 and 4x - 3y + 12 = 0 to the normal fo...

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  14. A stright line has equation 6x - 4y + 9 = 0........(1) Write down is s...

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  15. A straight line has equation 6x - 4y + 9 = 0........(1) Write down its...

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  16. Find the point of inersection of the straight line x/a + y/b = 1 and x...

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  17. Consider a triangle whose sides are y = x, y = 2x and y = 3x + 4 Find...

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  18. Consider a triangle whose sides are y = x, y = 2x and y = 3x + 4 Find...

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  19. Consider a triangle whose sides are y = x, y = 2x and y = 3x + 4 Find...

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  20. Find the values of k for which the line (k-3) x - (4-k^2) y + k^2 - 7k...

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