Area of a circle Area of a circle In geometry, the area enclosed by a circle of radius is . Here the Greek letter represents a constant, approximately equal to 3.14159, which is equal to the ratio of the circumference of any circle to its diameter. One method of deriving this formula, which originated with Archimedes, involves viewing the circle as the limit of a sequence of regular polygons. The area of a regular polygon is half its perimeter multiplied by the distance from its center to its sides, and the corresponding formula (that the area is half the perimeter times the radius, i.e.
Straight from the Heart (Patrice Rushen album) "Straight from the Heart" a "C+" and said that he prefers side one's "dancy vamp" over the songwriting on side two by Rushen, whom he called a fashionable "ingenue". In a retrospective review, AllMusic's Andy Kellman gave it four out of five stars and called it "an early-'80s jazz-pop-R&B synthesis as durable and pleasing as any other". In 2018, Pitchfork ranked Straight From the Heart #194 on its list of the 200 Greatest Albums of the 1980s. Straight from the Heart (Patrice Rushen album) Straight from the Heart is the seventh studio album by American recording artist Patrice Rushen, released