triangle DEF and triangle QRS are right triangles. If triangle DEF is simular to triangle QRS, and measure angle EFD= 65 degress, which of the angle also has 65

Question

triangle DEF and triangle QRS are right triangles. If Δ DEF is simular to Δ QRS, and m<EFD= 65°, which of the following angles also has a mesure of 65°?

Answer 1

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

The 65^o angle EFD of triangle of triangle DEF has vertex F (middle letter of angle's 3-letter name);

the corresponding angle in triangle QRS must have its vertex at S, so this other 65^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.]