1. Both triangles are right triangles.
Knowing that the two triangles are right angled, does not
confirm if the triangles are congruent.
3-4-5 and 6-8-10 are both right angled but not congruent(Insufficient)
2. Both triangles have the sameperimeter.
3-4-5 and 4-4-4 have same perimeter but aren't congruent(Insufficient)
On combining both the statements,
Lets take case of Pythagorean triplets
Triangle 1 with sides21,28 and 35
Triangle 2 with sides12,35 and 37
Both are right angled triangles
...
Knowing that the two triangles are right angled, does not
confirm if the triangles are congruent.
3-4-5 and 6-8-10 are both right angled but not congruent(Insufficient)
2. Both triangles have the sameperimeter.
3-4-5 and 4-4-4 have same perimeter but aren't congruent(Insufficient)
On combining both the statements,
Lets take case of Pythagorean triplets
Triangle 1 with sides21,28 and 35
Triangle 2 with sides12,35 and 37
Both are right angled triangles
...





