Area of a circle order to arrive at the formula for the area of a disk. Consider unwrapping the concentric circles to straight strips. This will form a right angled triangle with r as its height and 2r (being the outer slice of onion) as its base. Finding the area of this triangle will give the area of the disk The opposite and adjacent angles for this triangle are respectively in degrees 9.0430611..., 80.956939... and in radians 0.1578311... , 1.4129651... Explicitly, we imagine dividing up a circle into triangles, each with a height equal to the circle's radius and a base that is infinitesimally
There Is a Light That Never Goes Out Again" and the flute section in "There Is a Light That Never Goes Out" (originally written as a guitar part) are based on C# minor arpeggio figure. The song features an ascending F#m–A–B chord sequence that guitarist Johnny Marr took from the Rolling Stones cover of Marvin Gaye's "Hitch Hike". Marr said in 1993 that he included the figure as an "in-joke" to determine if the music press would attribute the inspiration for the part to "There She Goes Again" by the Velvet Underground, who he contended "stole" the figure from "Hitch Hike". Marr commented, "I knew I was smarter