Criteria for which Triangles are not Congruent

Q. Which of the following criteria CANNOT be used to prove triangles to be congruent ?

1. SSS
2. AAS
3. SAS
4. AAA

Q. Two triangles have equal corresponding angles as ${40}^o$, ${60}^o$ and ${80}^o$. These triangles are neccessorily be

1. Congruent
2. Similiar

Q. A triangular-shaped park is to be constructed in a middle of a city with dimensions of approximately 1 kilometer, 1.6 kilometers and 40°. Will any triangle with the given dimensions be identical in shape and size? Answer in Yes/No.

Q. Based on the given properties, evaluate whether $△ABCand△DEF$ are congruent. Given:$BC=6cm,AC=4cm,$
$m\angle B={35}^{\circ },EF=6cm,DF=4cm,$
$m\angle E={35}^{\circ }.$

1. Congruent
2. Not congruent
3. May or may not be congruent
4. None of the above

Q. Two triangles have same corresponding angles, i.e., ${30}^o,{60}^o$ and ${90}^o$ in that order. Take an example and determine if they congruent triangles?

1. Yes
2. No