Practice30Create account

Triangle ABC is congruent to triangle ACB (same triangle, swapped order). This requires:

Class 9Criteria for CongruenceGeometry — Triangles
  • Athe triangle to be isosceles with AB = AC
  • Bthe triangle to be scalene
  • CAB = BC only
  • Dno special condition

Step-by-Step Solution

Matching A-A, B-C, C-B needs AB = AC and angle B = angle C, i.e. an isosceles triangle.
Answer: A) the triangle to be isosceles with AB = AC

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

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…Arjun claims: 'If two triangles have two equal angles and one equal side anywhere, they…