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
Straight Out of Line Straight Out of Line "Straight Out of Line" is the lead single from Godsmack's third studio album "Faceless". After its release, the song immediately ascended to number one on the Mainstream Rock chart, and hit the top 10 on the Modern Rock chart. It was also the band's third number one on the Mainstream Rock Tracks chart and remained at that specific position for two weeks. It is also their highest charting single on the Billboard Hot 100, reaching No. 73. "Straight Out of Line" is dedicated to old friends who sneer at Sully across a crowded room because of