Question

Find the criteria of congruency for $\Delta ABC$ and $\Delta DEF$.

• A. A-A-S congruency
• B. A-S-A congruency
• C. S-S-S congruency
• D. S-A-S congruency

Answer 1

The correct option is A A-A-S congruency

In $\Delta ABC$ and $\Delta DEF$,
$\angle B=\angle E$
$\angle C=\angle F$
AC = DF = 5 ft

If two angles and a side of one triangle are congruent to two angles and a side of another triangle, then the two triangles are congruent by A-A-S congruency.

$\therefore \Delta ABC\cong \Delta DEF$ by A-A-S congruency.