Circle a triangle whose base has the length of the circle's circumference and whose height equals the circle's radius, which comes to multiplied by the radius squared: Equivalently, denoting diameter by "d", that is, approximately 79% of the circumscribing square (whose side is of length "d"). The circle is the plane curve enclosing the maximum area for a given arc length. This relates the circle to a problem in the calculus of variations, namely the isoperimetric inequality. Equation of a circle<br> In an "x"–"y" Cartesian coordinate system, the circle with centre coordinates ("a", "b") and radius "r" is the set of
What Is a Man Without a Moustache? 62 based on five reviews from critics. In a review for "Variety" magazine, critic Deborah Young called "What Is a Man Without a Moustache?" "an entertaining romantic comedy" and a "good-humored film" while, on the other hand, noting that the film should be better received by local and regional audiences due to its story being "a hard sell abroad". Author and film critic Michael Atkinson, writing for "The Village Voice", expressed his divided opinion that the film "is not remarkable or ingenious" but that it still is "adept enough for a pass on." Critic Nathan Lee of "The New York