3. the following pairs of triangles are congruent . find the unknown lengths of the sides .
(a)
step 1:- given:- △ACB≅△DEF
to find:- EF
step 2:- as, △ACB≅△DEF
CB=EF(cpct)
⇒EF=5cm
Question 143
In the following pairs of triangles in below figures, the lengths of the sides are indicated along the sides. By applying SSS congruence criterion, determine which triangles are congruent. If congruent, write the results in symbolic form.