[color=#1e84cc]If two triangles have their sides proportional, then the triangles are equiangular with the equal angles opposite the corresponding sides.[br][/color][br][url=http://aleph0.clarku.edu/~djoyce/java/elements/bookVI/propVI5.html]http://aleph0.clarku.edu/~djoyce/java/elements/bookVI/propVI5.html[/url]