If a mirror is placed on the line XY (vertical mirror to the right), then which of the answer figures is the right image of the given figure?
Description of object: A large triangle with its apex pointing upwards. Inside it is a circle, and inside that circle is a smaller triangle with its apex pointing downwards.
- AA triangle with apex pointing upwards, containing a circle, containing an inner triangle with apex pointing downwards.
- BA triangle with apex pointing downwards, containing a circle, containing an inner triangle with apex pointing upwards.
- CA triangle with apex pointing upwards, containing a circle, containing an inner triangle with apex pointing upwards.
- DA triangle with apex pointing downwards, containing a circle, containing an inner triangle with apex pointing downwards.
Solution & Step-by-step Explanation
When a mirror is placed vertically (along line XY to the side):
Left and right sides are interchanged.
Top and bottom orientations remain completely unchanged.
Looking at the original figure:
The outer triangle points upwards. In the mirror reflection, it will still point upwards.
The inner triangle points downwards. In the mirror reflection, it will still point downwards.
The circle remains symmetrical.
Therefore, the reflection looks exactly identical to the original layout, which matches Option A.
Left and right sides are interchanged.
Top and bottom orientations remain completely unchanged.
Looking at the original figure:
The outer triangle points upwards. In the mirror reflection, it will still point upwards.
The inner triangle points downwards. In the mirror reflection, it will still point downwards.
The circle remains symmetrical.
Therefore, the reflection looks exactly identical to the original layout, which matches Option A.