No they do not.
pointplanepolygonPythagorean Theorypentagonprotractor
15
It means that a certain set of points are all on the same line.
According to Euclidean geometry, that is an object where all the angles are the same and all the sides are the same length.
In geometry, "regular" means all the sides are the same (and all angles the same). A regular pentagon has all 5 sides the same. Some pentagons have every side different; other irregular pentagons have 2, 3, 4, or 5 sides the same.
All chemical compounds have a geometrical structure; the study of molecules geometry is called stereochemistry.
Electron Pair Geometry: Tetrahedral Molecular Geometry: Bent
1. At least one bond must be polar covalent 2. asymmetric geometry
15
It means that a certain set of points are all on the same line.
pointplanepolygonPythagorean Theorypentagonprotractor
Geometry is all about measurement.
According to Euclidean geometry, that is an object where all the angles are the same and all the sides are the same length.
Yes; all water molecules are bent. The H-O-H bonding of the three atoms is never in a straight line. Unfortunately, you need to know some Qantum Mechanics to understand why. More unfortunately, I don't.
chemical and physical change.
Nope, All molecules are different. They might look the same, but they aleast have thing different.
It is not linear, it is bent and the ideal angle is 109.5