Question

Are triangles ABC and dEF equal ? How understand it

Answer 1

Answer:

Step-by-step explanation:

If in triangles ABC and DEF, angle A = angle D, angle B = angle E, and AB = DE, then triangle ABC is congruent to triangle DEF. ... Again, one can make congruent copies of each triangle so that the copies share a side. Then one can see that AC must = DF.