Question

which pairs of figures are congruent? which pairs are similar?

Explanation:

Step1: Recall definitions

Congruent figures have same shape and size. Similar figures have same shape but different sizes.

Step2: Analyze first pair (triangles)

They have same shape (right - angled triangles) but different sizes. So congruent? No. Similar? Yes.

Step3: Analyze second pair (squares)

Same shape (squares) but different sizes. Congruent? No. Similar? Yes.

Step4: Analyze third pair (circles)

Same shape (circles) but different sizes. Congruent? No. Similar? Yes.

Step5: Analyze fourth pair (T - shaped figures)

Same shape (T - shaped) but different sizes. Congruent? No. Similar? Yes.

Answer:

First pair: Congruent? No, Similar? Yes.
Second pair: Congruent? No, Similar? Yes.
Third pair: Congruent? No, Similar? Yes.
Fourth pair: Congruent? No, Similar? Yes.