Congruent Triangles In Geometry. There are four rules to check for congruent triangles. See congruent for more info congruent triangles.
We mark the corresponding equal sides with one line two lines and three lines as above. Sss side side side sss stands for side side side and means that we have two triangles with all three sides equal. The corresponding parts of congruent triangles are congruent.
Sss side side side sss stands for side side side and means that we have two triangles with all three sides equal.
If three sides of one triangle are equal to three sides of another triangle the triangles are congruent. Sas criterion for congruence. Two triangles that have the same three sides same length and the same angles same angle measures are said to be congruent or the same. The equal sides and angles may not be in the same position if there is a turn or a flip but they are there.