Name the types of following triangles:
`Delta` DEF with `m angleD = 90^@` …………………

If triangle ABC cong triangle DEF then angleE = ______

Name the types of triangles formed in two different ways in each of the following : (i) A triangle in which one angle is of 90^(@) , and the other two angles are equal. (ii) A Delta ABC with m angle A = 40^(@), m angle B = 60^(@) and m angle C = 80^(@) . (iii) A triangle in which one angle is obtuse and the other two angles are equal.

If triangle ABC cong triangle DEF then

If triangle ABC cong triangle DEF then angle EDF = ________