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The points (4,-1),(7,9) and (4,11) are t...

The points (4,-1),(7,9) and (4,11) are the mid points of the sides of the triangle. Then the centroid is

A

(5,-3)

B

(5, 3)

C

`(-5, (19)/(2))`

D

`(5, (19)/(2))`

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The correct Answer is:
D
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HIMALAYA PUBLICATION-COORDINATE SYSTEMS, LOCUS AND STRAIGHT LINES-QUESTION BANK
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  2. The one of the possible third vertex of the equilateral triangle whose...

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  3. The points (4,-1),(7,9) and (4,11) are the mid points of the sides of ...

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  4. The vertices of a triangle are (0,0),(0,2) and (2,0) .The distance bet...

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  5. Two opposite vertices of a square are (1,-2) and (-5,6), then the othe...

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  7. The image of the point P(3,5) w.r.t the line y=x is the point Q and th...

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  8. The centroid of the triangle A B C is (2,3) and A=(4,2), B=(4,5), then...

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  9. The circumcentre and the centroid of a triangle are (6,2) and (3,3) th...

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  10. The orthocentre and centroid of a triangle are (-3,5),(3,3) then the c...

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  11. If the points (1, 2) and (3, 4) were to be on the same side of the lin...

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  12. A (1, 3) and C(7, 5) are two opposite vertices of a square. The equati...

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  13. One of the equations of the lines passing through the point (3, -2) an...

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  14. The equation of the diagonal through the origin of the rilateral forme...

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  15. The area of the triangle whose sides are along x=0, y=0 and 4 x+5 y=20...

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  16. If a, b, c are in A. P., then st. line ax+by+c=0 will always pass thro...

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  17. The number of lines that are parallel to2 x+6 y-7=0 and have an interc...

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  18. The inclination of the line through (-3,6) and the midpoint of the lin...

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  19. A line through the point A(2,0) which makes an angle of 30^(circ) with...

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  20. The equation of the line which makes an angle 15^(circ) with the posit...

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