Circular triangle Circular triangle In geometry, a circular triangle is a triangle with circular arc edges. A convex circular triangle may be constructed by three circles intersecting each other and represents the area of intersection. Its edges are all curved outwards. The sum of the internal angles of a circular triangle is greater than 180°. A Reuleaux triangle is a special case based on an equilateral triangle where the center of each arc is on the opposite vertex. A circular horn triangle is a similar concept, but represents the area interior to 3 mutually tangent circles so all of the internal angles
The Three Degrees The Three Degrees The Three Degrees is an American female vocal group, which was originally formed in 1963 in Philadelphia, Pennsylvania. Although a total of 15 women have been a member over the years, the group has always been a trio. The current line-up consists of Valerie Holiday, Helen Scott and Freddie Pool. Holiday has been a member since she first joined in 1967, while Scott has been a permanent member since 1976, having previously been in the group from 1963 to 1966. The group were particularly successful in the UK, achieving 13 Top 50 hit singles between 1974 and