The correct answer is option A
What is a reflection?
Reflection is the mirror image of the shape. In other words reflection is also called a flip.
How to find which triangle which triangle is the reflection of triangle 1 over the line y=x?
- If a triangle is reflected over the line y=x, then the coordinates of the vertices of the triangle gets interchanged.
In the given figure the vertices of the triangle are (1,1) , (4,1) and ( 4,3)
So, after reflection over the line y=x,
- The vertices of the triangle will be (1,1) , ( 1,4) and (3,4).
- Clearly, the triangle will be in the first quadrant itself
So, the correct answer will be option A , where the triangle has the vertices (1,1) , ( 1,4) and (3,4).
- In other options the triangles are not even in the first quadrant.
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