It would be ideal if each person could have his or her private office, but that is often unrealistic and extremely costly. Therefore, to create peace and harmony a few rules of etiquette should be observed.
The word isosceles is pronounced eye-sos-ell-ease with the emphasis on the 'sos'. It is any triangle that has two sides the same length. If all three sides are the same length it is called an equilateral triangle. Obviously all equilateral triangles also have all the properties of an isosceles triangle.
See more about definitions at Precision of Definitions. Example of a definition: An isosceles triangle is a triangle with two congruent sides. (if-then form) If a triangle is isosceles, then the triangle has two congruent sides. (reversed if-then form) If a triangle has two congruent sides, then the triangle is isosceles.