Question

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

Explanation:

Step1: Recall Rotation Definition

Rotation is a transformation that turns a figure around a fixed point, changing its orientation. Translation (like option A) moves the figure without rotating, while rotation changes the angle/orientation.

Step2: Analyze Each Option

• Option A: The triangle's orientation (angle of sides, vertex directions) is same as original. Likely translation, not rotation.
• Option B: The triangle's orientation is rotated (e.g., the vertex directions, side angles changed relative to original), matching rotation.
• Option C: The triangle's shape/orientation doesn't match a rotation (appears distorted or not a proper rotation).

Answer:

B. Option B