Naming two Congruent Triangles

Q. In the adjoining figure, which of the following is correct?

1. $△ABC\cong △PQR$
2. $△ABC\cong △QRP$
3. $△BAC\cong △PQR$
4. $△CAB\cong △PQR$

Q. In the following picture, two congruent triangles are shown.

Which of the following are the correct ways to represent their congruency? Check all that apply.

1. $△ABC\cong △PQR$
2. $△BCA\cong △QRP$
3. $△ACB\cong △PRQ$
4. $△BCA\cong △QPR$

Q. State whether the following statement is true or false:
While stating that two triangles are congruent using a congruence statement, the order of the vertices is very important.

Q. If $△ABC\cong △PQR$, which of the following are correct?

1. $m\angle A=m\angle P$
2. $m\angle B=m\angle Q$
3. $m\angle C=m\angle Q$
4. $m\angle B=m\angle R$

Q. If $△ABC\cong △PQR$, which of the following are correct?

1. $AB=PQ$
2. $AC=PQ$
3. $BC=QR$
4. $BC=PQ$