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The circumcentre of the triangle formed ...

The circumcentre of the triangle formed by the lines x+y=0, x-y=0 and lx+my=1 is

A

(2,1)

B

(5/2,5/2)

C

(5/4,5/4)

D

(15/8,15/8)

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The correct Answer is:
D
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AAKASH SERIES-STRAIGHT LINES-EXERCISE -II
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  4. The incentre of the triangle formed by the lines x+y=1,x=1,y=1 is

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  9. A straight line passing through origin and inclined at 60^(@) to the l...

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  10. The vertices of a trianvle are A(-1,-7),B(5,1) and C(1,4). The equatio...

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  11. Two equal sides of isosceles triangle are given by equation 7x-y+3=0 a...

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  12. The nearest point on the line 2x-y+5=0 from the origin is

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  13. Suppose A,B are two points on 2x-y+3=0 and P(1,2) is such that PA=PB. ...

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  14. If 2x+3y=5 is the perpendicular bisector of the line segment joining t...

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  15. If the foot of the line perpendicular from (-4,5) to the straight line...

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  16. The points A(1,2),B(3,-4) are two vertices of the rectangle ABCD. The ...

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  17. If 2x+3y+4=0 is the perpenedicular bisector of the segment joining the...

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  19. The vertex of a equilateral triangle is at (2,-1) and the side opposit...

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