Posted by Casey on .
can one tell if two triangles are congruent if they are given only the angles and all of them are congruent to one another? (Example below)
triangle ABC and triangle DEF with angle A congruent to angle D, angle B congruent to angle E, and angle C congruent to angle F

geometry 
Reiny,
no, they are not congruent, but they are similar.
e.g. a Slide projected on the wall has an image where the corresponding angles of the shapes would be equal, but certainly the shapes would not have the same size. 
geometry 
Casey,
ok thank you so much. that is what i thought but i was thinking too much into it...again :)