These have an iron-containing protein called hemoglobin, which is a perfect transporter for oxygen, in that it both picks up and releases oxygen in an exact and targeted way. The average man has about 2 grams of iron in his blood cells at any given time while women have about 1.6 grams.
Definition: A rhombus is a parallelogram with four congruent sides. *Rhombus I have all of the properties of the parallelogram PLUS - 4 congruent sides-diagonals bisect angles-diagonals perpendicular Using the definition, the properties of the rhombus can be proven true and become theorems. rectangle is a parallelogram with four right angles. While the definition states parallelogram, it is sufficient to say: A quadrilateral is a rectangle if and only if it has four right angles., since any quadrilateral with four right angles is a parallelogram. 2.
A rhombus is an equilateral parallelogram, which is a two-dimensional, four-sided figure in which opposite sides are parallel and all sides have equal length. A square fits this definition. However, it is usually considered a special case, and some definitions of a rhombus specify that squares are not included.