3, otherwise below that it just collapses to a straight line or even a point.
6 sides
2 is.
Yes
3, it's called a triangle.
All acute triangles have 3 interior angles and 3 exterior angles. This is true for all triangles.
A trapezoid
6 sides
The number of sides and vertices are the same
It is 2
two
2
It is 2
2 is.
Two.
2
Every triangle must have either 2 or else 3 acute angles. The least possible is 2.
Yes