Question

which pairs of figures are congruent? which pairs (partially obscured)

first pair (l - shaped figures):
congruent? ∘ yes ∘ no
similar? ∘ yes ∘ no

second pair (circles):
congruent? ∘ yes ∘ no
similar? ∘ yes ∘ no

third pair (triangles):
congruent? ∘ yes ∘ no
simliar? ∘ yes ∘ no (note: simliar likely typo for similar)

fourth pair (square and rectangle):
congruent? ∘ yes ∘ no
similar? ∘ yes ∘ no

Explanation:

Step1: Check top-left pair

Two L-shapes: same size/shape → congruent (thus similar).

Step2: Check top-right pair

Two circles: different sizes → not congruent; circles are similar.

Step3: Check bottom-left pair

Two triangles: same shape/different sizes → not congruent; similar.

Step4: Check bottom-right pair

Square vs rectangle: different shapes → not congruent/similar.

Answer:

Top-left: Congruent? Yes, Similar? Yes
Top-right: Congruent? No, Similar? Yes
Bottom-left: Congruent? No, Similar? Yes
Bottom-right: Congruent? No, Similar? No