Intercept
If I understand your question, you are referring to the vertex. This is the point where the sides meet, also where the angle is formed.
Point common to two sides of an angle = vertex. Points common to two sides of a polygon, if they exist, are all the points along an edge.
a point on the bisector of an angle, it is equidistant from the 2 sides of the angle
vertex
angle
an angle
An angle must have 2 sides or it is no longer an angle.
None. An angle has 2 sides.
It really depends on the angle. If the angle is at the point where the two equal sides intersect then you can divide the triangle into two equal parts (forming a right angle with the base), divide the angle by two, then use the following equation(side*arccos(your angle/2))*((side*arcsin(your angle/2)))if the angle is not where the two equal sides intersect then you can divide the triangle into two equal parts (from the point where the two equal sides intersect down to a right angle with the base) then use the following equation.(side*arcsin(your angle)*(side*arccos(your angle))
2 sides
An angle has 2 sides, not 6.
a triangle with two sides the same length and no right angle