Question

look at this shape:
image of a blue triangle on a grid
which image shows a reflection?
images of three triangles labeled a, b, c on grids
options: a, b, c

Explanation:

A reflection creates a mirror image of the original shape, flipping it across an axis. Option A is a rotated and flipped version that does not match the mirror reflection. Option C is identical to the original shape, not a reflection. Option B is the mirror image, flipped horizontally to match the reflection of the original triangle.

Answer:

B. The triangle that is a horizontal mirror image of the original shape