Congruent Triangles Definition Maths. Thus we can say that they are congruent. The equal sides and angles may not be in the same position if there is a turn or a flip but they are there.
A d b f and c e below. Angles are congruent when they are the same size in degrees or radians. If two sides and the included angle of one triangle are equal to the corresponding sides and angle of another triangle the triangles are congruent.
Under this criterion if the two sides and the angle between the sides of one triangle are equal to the two corresponding sides and the angle between the sides of another triangle the two triangles are congruent.
The same shape and size but we are allowed to flip slide or turn. In math we have a special symbol to show congruency. Asa angle side angle asa stands for angle side angle and means that we have two triangles where we know two angles and the included side are equal. Angles are congruent when they are the same size in degrees or radians.