International Student Immunization Requirements. Measles, Mumps and Rubella (MMR) Two doses of measles vaccine given at least 30 days apart on or after the first birthday or physician documentation of measles disease or a lab test documenting immunity to measles disease.
Rhombus plural: rhombi. Definition: A quadrilateral with all four sides equal in length. Try this Drag the orange dots on each vertex to reshape the rhombus. Notice how the four sides remain the same length and the opposite sides remain parallel. A rhombus is actually just a special type of parallelogram.
A rhombus is a type of parallelogram, and what distinguishes its shape is that all four of its sides are congruent. There are several formulas for the rhombus that have to do with its. 1  Sides. 2  all 4 sides are congruent. 3  Angles. 4  diagonals bisect vertex angles.