If ∆DEF ≅ ∆ACB, then the part of ∆ACB that corresponds to angle F is :

Which angle is included between the sides QR and PR of ∆PQR?

What is the side included between the angles M and N of ∆MNP?

Under a given correspondence, two triangles are congruent if the three sides of the first are equal to the three corresponding sides of the other.

The above is known as :

Under a given correspondence, two triangles are congruent if two sides and the angle included between them of the first are equal to the corresponding sides and the angle included between them of the other triangle.

The above is known as :