Question: Which of the following triangles is congruent to triangle ABC if AB = 5 cm, AC = 7 cm, and BC = 5 cm?

Options:

1. Triangle DEF with DE = 5 cm, DF = 7 cm, EF = 5 cm
2. Triangle GHI with GH = 5 cm, HI = 7 cm, IG = 6 cm
3. Triangle JKL with JK = 6 cm, KL = 5 cm, JL = 5 cm
4. Triangle MNO with MN = 5 cm, NO = 7 cm, OM = 5 cm

Correct Answer: Triangle DEF with DE = 5 cm, DF = 7 cm, EF = 5 cm

Solution:

Triangles are congruent if they have the same side lengths. Triangle DEF has the same side lengths as triangle ABC.