The reflection of a geometrical figure means the formation of the image of the figure after reflecting the figure about the line of reflection.
Properties of Reflection
Reflection of geometrical figures using coordinates
Here, we can find the co-ordinates of the images of geometrical figures formed due to the reflection by x-axis and y-axis separately. In this case, x-axis and y-axis are called the axis of reflection.
Properties of Reflection
Solution:
A(2,-2)\(\rightarrow\)A’(-2,-2)
B(5,3)\(\rightarrow\)B’(-5,3)
C(1,4)\(\rightarrow\)C’(-1,4)
So, the coordinates of the vertices of image \(\triangle\)A’B’C’ are A(-2,-2), B(-5,3) and C(-1,4).
Solution:
A(-2,3)\(\rightarrow\)A’(-2,-2)
B(2,1)\(\rightarrow\)B’(2,-1)
C(4,4)\(\rightarrow\)C’(4,-4)
So, the coordinates of the vertices of image \(\triangle\)A’B’C’ are A(-2,-3), B(2,-1) and C(4,-4).
What coordinates of image do we get from the points (2, 6) under the reflection about the x-axis?
What coordinates of image do we get from the points (-3, 8) under the reflection about the x-axis?
What coordinates of image do we get from the points (7, -4) under the reflection about the x-axis?
What coordinates of image do we get from the points (-5, -9) under the reflection about the x-axis?
What coordinates of image do we get from the points (0, -6) under the reflection about the x-axis?
What coordinates of image do we get from the points (5, 3) under the reflection about the y-axis?
What coordinates of image do we get from the points (4, -7) under the reflection about the y-axis?
What coordinates of image do we get from the points (-9, 6) under the reflection about the y-axis?
What coordinates of image do we get from the points (-2, -5) under the reflection about the y-axis?
What coordinates of image do we get from the points (-3, 0) under the reflection about the y-axis?
ASK ANY QUESTION ON Reflection of Geometrical Figures
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