Question

What is line segment and what is angle

Answer 1

$\huge \mathfrak \red{ What \: is \: line \: segment \: ?}$

A line segment has two endpoints. It contains these endpoints and all the points of the line between them. You can measure the length of a segment, but not of a line. A segment is named by its two endpoints, for example, ¯AB

$\huge \mathfrak \red{What \: is \: angle ?}$

An angle is a combination of two rays (half-lines) with a common endpoint. The latter is known as the vertex of the angle and the rays as the sides, sometimes as the legs and sometimes the arms of the angle.