Practice Test | Kullabs.com
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  • A(6,-2), B(10,4) and C(4,6) are the vertices of Δ ABC.Find the co-ordinates of its image under the following rotation about the origin.

    90°(-ve)

     

    A'(6,1),B'(4,-11),C'(6,1)
    A'(-7,2),B'(2,-10),C'(6,-4)
    A'(-6,2),B'(4,-10),C'(6,-4)
    A'(-6,2),B'(4,-10),C'(8,-4)
  • A(6,-2), B(10,4) and C(4,6) are the vertices of Δ ABC.Find the co-ordinates of its image under the following rotation about the origin.

    90°(+ve)

    A'(2,6),B'(-4,10),C'(-6,4)
    A'(2,6),B'(-4,10),C'(6,4)
    A'(1,6),B'(4,10),C'(-6,4)
    A'(-2,6),B'(-4,10),C'(-6,4)
  • A(6,-2), B(10,4) and C(4,6) are the vertices of Δ ABC.Find the co-ordinates of its image under the following rotation about the origin.

    180°

    A'(-6,1),B'(-10,2),C'(-1,-2)
    A'(-6,2),B'(-9,-4),C'(-4,-6)
    A'(-6,2),B'(-10,-4),C'(-4,-6)
    A'(6,8),B'(10,-4),C'(-4,-6)
  •   The image of points A(4,5) and B(6,3) are A'(-5,4) and B'(a,b).Find the values of a and b.

    a=-3 and b=6
    a=-8 and b=7
    a=-1 and b=8
    a=-2 and b=5
  • If the vertices of ( riangle)MNP are M(1,1), N(3,1) and P(2,3), plot the image of ( riangle) MNP under the rotation through 90° in anti-clockwise direction about the origin.Then determine the co-ordinates of the corresponding  vertices.

    M'(1,1),N'(1,3),P'(6,2)
    M'(1,2),N'(-1,3),P'(3,2)
    M'(1,1),N'(-8,3),P'(-3,2)
    M'(-1,1),N'(-1,3),P'(-3,2)
  • If the vertices of ( riangle)ABC are A(2,3), B(4,5) and C(6,2), plot the image of ( riangle) ABC  under the rotation through 90° in anti-clockwise direction about the origin.Then determine the co-ordinates of the corresponding  vertices.

    A'(-3,2)B'(-5,4),C'(-2,6)
    A'(-3,2)B'(5,4),C'(-1,6)
    A'(1,2)B'(-6,4),C'(2,6)
    A'(-3,1)B'(-5,8),C'(-2,6)
  • P(4,-2), Q(2,1) and R(5,2) are the vertices of ( riangle)PQR.Draw the figure of ( riangle)PQR under the rotation of 270° by taking (0,0) as the centre of rotation and write the image.

    P'(-3,-1),Q'(1,-2),R'(2,-5)
    P'(5,-1),Q'(1,-2),R'(2,-5)
    P'(-3,-1),Q'(1,-2),R'(2,2)
    P'(-3,-1),Q'(1,7),R'(2,-5)
  • A(2,5), B(6,4) and C(3,7) are the vertices of ( riangle)ABC.Draw the figure of image of ( riangle)ABC under the rotation of -270° by taking (0,0) as the centre of rotation and write the co-ordinates of the image.

    A'(-5,2),B'(4,6),C'(-7,2)
    A'(5,8),B'(-4,6),C'(7,2)
    A'(-5,2),B'(-4,6),C'(-7,3)
    A'(5,1),B'(-8,6),C'(-7,3)
  • A triangle with vertices A(2,4) B(6,4) and C(4,2) is rotated by an angle of x° about the (a,b)  then the images are A'(4,-2) B'(4,-6) and C'(2,-4).Find the values of x, a and b using graph.

    x =-80° or, 290°,a=0,b=1
    x =-60° or, 270°,a=1,b=0
    x =-50° or, 270°,a=8,b=5
    x =-90° or, 270°,a=0,b=0
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