An eqilateral triangle.
Yes. You would have to have a right angle and two 45 degree angles
The definition of a circle is not part of the triangle (or tringle, even) proportionality theorem.
The correct name for a 3D diamond shape is a rhombic dodecahedron. This polyhedron has 12 congruent rhombus-shaped faces and is a type of dodecahedron, which is a polyhedron with 12 faces. The term "diamond" is often used colloquially to describe this shape due to its resemblance to the face of a cut diamond.
The three inside angles of any tringle always add up to 180 degrees.
No.
its a paranormal place
axis
equilateral
5
Scalene.
No, and neither does a triangle.