How to prove similar triangles<br>Define the angle-angle (aa) theorem. Two triangles can be proved similar by the angle-angle theorem which states: if two triangles have two congruent angles, then those triangles are similar. [substeps] This theorem is also called the angle-angle-angle (aaa) theorem because if two angles of the triangle are congruent, the third angle must also be congruent.
There are ways to tell if triangles are similar
( z1 way :manner-of ( z2 tell :ARG1 ( z3 resemble :ARG1 ( z4 triangle ) ) ) )