Problem Figures :

In a figure-analogy pattern-completion item, two problem figures establish a transformation rule applied to a small set of basic shapes; the option that correctly extends the series is the one obtained by applying that EXACT operation, not a different-looking operation that happens to touch the same starting shapes.

Here the operation shown is a 180-degree turn (point rotation) about the centre of the panel -- every basic shape swings to its rotationally opposite orientation as a single move, distinct from a mirror-flip across an edge or from drawing a shape's start and end stages together.

Applying the operation: the inverted triangle in the upper panel rotates 180 degrees about the panel's centre to become an upright triangle in the lower panel, and the left-facing semicircle rotates the same way to become a right-facing semicircle. Extending this rotation to the answer panel's triangle and semicircle-pair gives a single upright triangle together with a circle divided by one straight line -- the semicircle's rotated copy meets its own start position edge to edge, completing a full circle split along that single seam.

• Reflecting the triangle across its own apex instead of rotating it about the panel's centre leaves the mirrored triangle touching the original at just that one point, producing a bow-shaped outline rather than the rotated triangle's own new position.

• Drawing the triangle's start and end orientations directly on top of each other, instead of showing only the rotated result, produces a six-pointed star; treating the semicircle's start and end positions as two separate call-outs rather than one rotated piece meeting its own start edge produces a visible gap instead of a single seam.

• Reflecting the triangle across its own base instead of rotating it about the panel's centre leaves the mirrored triangle joined edge-to-edge with the original, producing a kite-shaped outline rather than the rotated triangle's own new position.

Only rotating each shape 180 degrees about the panel's centre -- not reflecting it across an edge, and not drawing both its stages together -- gives the upright triangle beside the circle split along one seam, matching the answer figure shown below.