no
The interior angles of any shape besides a triangle will add up to 360 degrees.
any 10 sided polygon is called a Decagon.
Yes
Yes because any 4 sided shapes are quadrilaterals.
no
The answer could depend on the way in which the shapes are connected but I doubt that it has any specific name.
The interior angles of any shape besides a triangle will add up to 360 degrees.
any 10 sided polygon is called a Decagon.
Well, honey, when you cut a triangle in half, you get two smaller triangles. So technically, you don't get a four-sided shape, you get two three-sided shapes. It's basic geometry, darling.
A triangle
Yes
Any odd-sided shape.
Any 4 sided shapes are quadrilaterals
Yes eg dodecagon
Yes because any 4 sided shapes are quadrilaterals.
Any polygon, and thence, any polyhedron.