Question

congruent
similar
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Explanation:

Step1: Recall definitions

Congruent shapes have same size and shape. Similar shapes have same shape but can be different in size.

Step2: Identify congruent pairs

Pairs with "BOTH same size and shape" label are congruent: blue - L - shaped pair, yellow - star pair, green - arrow pair, red - square pair, blue - circle pair.

Step3: Identify similar pairs

Pairs with "Same shape ONLY" label are similar: yellow - triangle pair, teal - trapezoid pair, orange - pentagon pair, yellow - star (different - sized) pair, purple - trapezoid pair, red - rectangle pair, white - triangle pair, green - triangle pair, white - parallelogram pair.

Answer:

Congruent: blue - L - shaped pair, yellow - star pair, green - arrow pair, red - square pair, blue - circle pair
Similar: yellow - triangle pair, teal - trapezoid pair, orange - pentagon pair, yellow - star (different - sized) pair, purple - trapezoid pair, red - rectangle pair, white - triangle pair, green - triangle pair, white - parallelogram pair