Question 79

Choose the correct mirror image of the figure (X), when the mirror is placed on a line AB as shown below.

image

Solution

The mirror AB is vertical and placed to the right of the figure, so left and right are swapped while top and bottom stay the same. The square that was at the top left moves to the top right, the circle moves from the top right to the top left, and the shaded small triangle moves from the bottom right to the bottom left of the big triangle. Only figure (4) shows this arrangement.

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