No angles are not matter.
no
Matter, by itself, is not sentient. So matter is not capable of any kind of consideration. So it cannot consider anything to be, or not to be, matter.
It doesn't matter what type of triangle it is, or the length of the sides. The sum of the interior angles of a triangle always adds up to 180 degrees
gaseous matter..
no
A rhombus has four congruent sides. The angles don't matter, but if they're right angles, then the rhombus is a square.
The sum of the exterior angles of any polygon - no matter how many sides, no matter whether it is convex or concave - is 360 degrees.
The sum of the exterior angles of a polgon - no matter how many sides - is 360 degrees.
complementary angles measures add to 90 and supplementary angles measures add to 180. Whether they are next to each other or not does not matter.
transverse
It has 360 degrees altogether no matter what. The sum of the four angles of any quadrilateral is 360o.360
No, supplementary angles just add up to 180 degrees. It does not matter how these 180 degrees are distributed.