Question

which pairs of figures below are congruent? congruent? yes no yes no

Explanation:

Step1: Recall the definition of congruent figures

Congruent figures have the same shape and size.

Step2: Analyze the first pair (two triangles)

The two triangles have the same shape (both are equilateral - like triangles in the grid) and by counting the grid units for side lengths (assuming each grid square is a unit), they have the same size.

Step3: Analyze the second pair (two circles)

The two circles have different radii (by visual inspection of the grid - one is larger than the other), so they have different sizes.

Answer:

First pair: Yes; Second pair: No