Equilateral pentagon and no sides intersecting others. A common example of this type of pentagon is the regular pentagon. Equilateral pentagon In geometry an equilateral pentagon is a polygon with five sides of equal length. Its five internal angles, in turn, can take a range of sets of values, thus permitting it to form a family of pentagons. The requirement is that all angles must add up to 540 degrees and must be between 0 and 360 degrees but not equal to 180 degrees. In contrast, the regular pentagon is unique, because it is equilateral and moreover it is equiangular (its five
Secretariat of the Interior States of America) and is occasionally translated to English as Ministry, Secretariat or Department of the Interior. In 1821, after the establishment of what was then the Mexican Provisional Cabinet (Junta Gubernativa Provisional), and given public urgings to organise the country's government, regulation was produced outlining the functions of a new governmental arm, then styled "The Office for Domestic and Foreign Affairs". The new agency was answerable for managing the functioning of the government in general. The first person to take up the Directorship of the Office was José Manuel de Herrera who held the post between 1821 and 1823.