If you have a blood ketone meter, this is what the readings mean: 1  Light Ketosis: 0.5 mmol/L â 0.8 mmol/L. 2  Medium Ketosis: 0.9 mmol/L â 1.4 mmol/L. 3  Deep Ketosis (best for weight loss): 1.5 mmol/L â 3.0 mmol/ L.
(3) Symmetry, in the general sense, means the invariance of the structure of a mathematical or physical object with respect to transformations of the object. For example, the symmetry of the laws of the theory of relativity is determined by their invariance with respect to the Lorentz transformations.1) A symmetry, in the narrow sense, is a reflection with respect to a plane Î± in space or with respect to a line a in the plane. Such a symmetry is a transformation of space or the plane that takes every point M into a point Mâ such that the line segment MMâ is perpendicular to Î± or a and is divided in half by Î± or a.
Quick Answer. An oval has two lines of symmetry. A line of symmetry is defined as the line that a figure can be divided into half, with the end result of the two halves matching up exactly. Each side of the divided side looks like a mirror image. Continue Reading.