A segment.
A straight line that joins one vertex to another vertex.
It is called a bisector.
An infinite number. Having drawn a triangle, it can be converted into two triangles by simply adding a line from any vertex to any point on the opposite side. That increases the number of triangles by one. Repeat with another triangle. And again ...
Three
A segment.
In a polygon with n sides, the number of diagonals that can be drawn from one vertex is given by the formula (n-3). Therefore, in a 35-sided polygon, you can draw (35-3) = 32 diagonals from one vertex.
A straight line that joins one vertex to another vertex.
A diagonal in a shape is a straight line from one vertex to another vertex (corner).
It is called a bisector.
It is a side or a diagonal.
An isosceles triangle has one line of symmetry, which is drawn from the noncongruent side to the opposite vertex, and does not have a rotation symmetry.
Number of sides minus two equals number of diagonals drawn from one vertex.
No.
In a 54-sided polygon, 53 possible diagonals can be drawn from one vertex to another. These diagonals will not intersect. Therefore, the interior will be divided into 54 regions by the 53 diagonals plus the two sides of the original polygon that adjoin the vertex from which the diagonals are drawn.
There are 10 possible diagonals drawn from one vertex of the 13-gon which divide it into 11 nonoverlapping triangles.
a vertex is a line to a point