Triangle Congruence Proofs Hl. Side side side is a rule used to prove whether a given set of 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.
There are five ways to find if two triangles are congruent. Now if we remember from when we learned to classify triangles a triangle is isosceles if two sides of a triangle are congruent. Corresponding sides and angles.
The sss rule states that.
Now if we remember from when we learned to classify triangles a triangle is isosceles if two sides of a triangle are congruent. There are five ways to test that two triangles are congruent. Sss sas asa aas and hl. In the diagrams below if ab rp bc pq and ca qr then triangle abc is congruent to triangle rpq.