Question

Question 42

If for $\Delta ABC$ and $\Delta DEF$, the correspondence $CAB\leftrightarrow EDF$ gives a congruence, then which of the following is not true?

a) AC = DE
b) AB = EF
c) $\angle A=\angle D$
d) $\angle C=\angle E$

Answer 1

Two figures are said to be congruent if the traced copy of figure 1 fits exactly on that of figure 2.

Now, if $\Delta ABC$ and $\Delta DFE$ are congruent, then
AB = DF, BC = EF
AC = DE, $\angle A=\angle D$
$\angle B=\angle F$, $\angle C=\angle E$
Hence, option (b) is not true.