Equilateral 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 angles are equal; the measure is 108 degrees). Four intersecting equal circles arranged in a closed chain
Sum of the Parts of exploratory jazz. All personnel information accessed via JazzLoft.com. Sum of the Parts Sum of the Parts is an album by tenor saxophonist/composer-arranger Ed Summerlin, released in 1998 on the Ictus label. "Los Angeles Times" reviewer, and Summerlin's onetime bandmate,Don Heckman, gave the album 3 stars and paid tribute to his erstwhile collaborator. Veteran tenor saxophonist-composer Ed Summerlin has been effectively venturing through the jazz avant-garde for more than three decades. "Sum of the Parts" displays the complexities and inherent swing in his dissonant, contrapuntal music. Resonant with influences from George Russell and Ornette Coleman, it nonetheless comes together as