Kenneth S. answered • 07/10/16

Algebra II EXPERT will help you survive & prosper

SIMILAR (note spelling) triangles must be listed in corresponding-angle order.

The 65

^{o}angle E*D of triangle of triangle DE***F****has vertex***F**F*(middle letter of angle's 3-letter name);the corresponding angle in triangle QR

*must have its vertex at S, so this other 65***S**^{o}angle can be called RSQ or QSR.*[All of this assumes that the triangles are not isosceles, in which case each triangle might have two 65*

^{o}angles.]