- AASA
- BSAS
- CSSS
- DRHS
Step-by-Step Solution
Angles A and B with included side AB equal the corresponding parts in DEF, giving ASA.
Answer: A) ASA
In triangle ABC, angle A = 50°, angle B = 60°. In triangle DEF, angle D = 50°, angle E = 60° and AB = DE. They are congruent by:
Class 9Criteria for CongruenceGeometry — Triangles
Master this chapter in 30 minutes a day.
Don't just memorise the answer — build a daily practice habit.
Practice 5 Similar Questions Free →All Criteria for Congruence practice questions
More Class 9 Criteria for Congruence practice
Triangle ABC is congruent to triangle ACB (same triangle, swapped order). This requires:Which criterion uses the Pythagoras relationship implicitly to justify it?Two triangles are congruent. The perimeter of the first is 24 cm. The perimeter of the…Riya draws two triangles. In the first, two sides are 7 cm and 9 cm with a 40° angle…In triangle ABC, D is the midpoint of BC. AD is drawn. It is given AB = AC. Using…