Shapes on the Grid
Slide a shape 2 units right: every vertex gets x + 2, y stays
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A shape is decided by its vertices: move the vertices and the shape moves. Read the coordinates of each vertex of a rectangle or a triangle on the grid, predict where a vertex will land after sliding 2 units right, and watch the animation check it — translation changes only x, while y stays right where it was.
Place 3-4 vertices to build rectangles and triangles on the grid, tap a vertex to read its coordinates, then predict where it lands after sliding 2 right.