A shaped that is formed by two lines or rays diverging at a common point also known as the vertex. Angles are measured by degrees. Angles are usually classified by three definitions acute angle, right angle, and obtuse angle. One single angle cannot meaasure to be more than 360degrees or less than 1 degree.
<ABC = This is an angle symbol that is defined by three points. The middle letter will always represent the vertex you may also refer it as <CBA. The order does not matter as long as the middle letter is the vertex point of the angle. So when you are saying the measurement of the angle is would be (m<ABC=34º). Further more when assining a point a letter it must be capitaized for it to be proper.