The two angles having a common arm and a common vertex are called __________

Q. A pair of angles with a common vertex and common arm are called

Q.

2 angles sharing a common arm vertex are called ___

Q. In the given figure, $\angle BAC$ and $\angle CAD$ are adjacent angles. Find the common vertex and common arm.

Q. If two angles of a quadrilateral have a common arm, they are called and if not, they are called

Q. The types of angles that have a common vertex and a common side are known as____.