Congruent figures are shapes that are identical in size and shape. This means that if you were to place one figure on top of the other, they would match perfectly. Congruent figures can be triangles, squares, or any other geometric shapes, as long as their corresponding sides and angles are equal. To determine if two figures are congruent, you can use various methods, such as the SAS (Side-Angle-Side) criterion for triangles. If all corresponding sides and angles of the figures are the same, they are considered congruent. This concept is important in geometry and helps in solving problems related to shape and size.