The clock hands suggest an angle. Is the anglestraight, right, obtuse, or acute?
An angle is formed by two rays with a common endpoint. The common endpoint is called thevertex. An angle is usually named by 3 points,the vertex and one on each day.
We say: angle ABC We write: ABC on theclock hands.
A
C B
Notice,in naming an angle, the vertex is always named as the center letter.